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Photo Forum / Digital Photography / DSLR Cameras / February 2007

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HORRIBLE vignetting with FF DSLRs

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RichA - 06 Feb 2007 23:01 GMT
And here I thought it was only with WAs.  These are not my shots, I
noticed them after one of the shots was posted.
Good shots, hampered by the camera lens.

Telelphoto wide open.

http://www.pbase.com/logear/image/74000263

WA stopped down, but look, actually image CUT OFF! Not just
vignetting!

http://www.pbase.com/logear/image/70768650

I'd say it's time Canon pulled it's finger out and DESIGNED lenses for
digital sensors.
Enough with relying on ancient film lenses to do a half-assed job.
Rita Ä Berkowitz - 06 Feb 2007 23:11 GMT
> And here I thought it was only with WAs.  These are not my shots, I
> noticed them after one of the shots was posted.
> Good shots, hampered by the camera lens.

LOL!  This is why you make a $15 investment and buy a adapter so you can use
your Nikkors on the 5D.  You never see these problems on the 5D when the
17-35/2.8 or the 28-70/2.8 Nikkors are installed.  I just can't see the
logic in buying Canon's flagship dSLR for $7K and crippling it with cheap
glass.

Rita
frederick - 06 Feb 2007 23:39 GMT
> And here I thought it was only with WAs.  These are not my shots, I
> noticed them after one of the shots was posted.
[quoted text clipped - 12 lines]
> digital sensors.
> Enough with relying on ancient film lenses to do a half-assed job.

Are you sure that the w/a shot wasn't from incorrect - or incorrectly
fitted lens hood or filter(s)?  Looks like that to me.

I had a look at it in PTLens - and it's beyond repair IMO.
I thought an expensive lens like 16-35 f2.8L would not be so bad.
Rita Ä Berkowitz - 06 Feb 2007 23:45 GMT
> I had a look at it in PTLens - and it's beyond repair IMO.
> I thought an expensive lens like 16-35 f2.8L would not be so bad.

Unfortunately, the 16-35/2.8 has been a major embarrassment for Canon on FF
bodies.  This really isn't anything new since this lens suffered from the
same ailments when use with film.  This is the driving force for many Canon
shooters to buy the 17-35/2.8 Nikkor.  Generally, any lens you have to use
software to correct optical flaw isn't worth using.

Rita
Skip - 07 Feb 2007 03:58 GMT
>> I had a look at it in PTLens - and it's beyond repair IMO.
>> I thought an expensive lens like 16-35 f2.8L would not be so bad.
[quoted text clipped - 6 lines]
> shooters to buy the 17-35/2.8 Nikkor.  Generally, any lens you have to use
> software to correct optical flaw isn't worth using.

Rita, stop spreading and augmenting Rich's lies.  The 16-35 is nowhere near
as bad as that, and that obviously a poorly fitted or chosen lens hood on
that shot.  Since the lower corners are not as bad as the upper, my vote is
for the poorly fitted hood.  And there is no identification of the actual
lens used, is there?
Rita, additionally, there are so few people actually buying that Nikkor to
mount on their 5D as to be insignificant.  The only instances I've seen
reported, other than you, of people using that lens on a 5D is by people who
already had the lens because they already had Nikon gear and got tired of
waiting for Sony to finally get off their corporate a.s and supply Nikon
with a 35mm sized sensor.

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Skip Middleton
www.shadowcatcherimagery.com
www.pbase.com/skipm

frederick - 07 Feb 2007 04:35 GMT
And there is no identification of the actual
> lens used, is there?

The lens data is in the EXIF of the jpeg.
Skip - 07 Feb 2007 13:55 GMT
I
> And there is no identification of the actual
>> lens used, is there?
>
> The lens data is in the EXIF of the jpeg.

saw no lens brand ID in the EXIF, could you elucidate>

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Skip Middleton
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www.pbase.com/skipm

frederick - 07 Feb 2007 18:47 GMT
> I
>> And there is no identification of the actual
>>> lens used, is there?
>> The lens data is in the EXIF of the jpeg.
>>
> saw no lens brand ID in the EXIF, could you elucidate>

You need to save the file on to your computer, and open it with an EXIF
viewer that reads all of the fields.
frederick - 07 Feb 2007 18:58 GMT
>> I
>>> And there is no identification of the actual
[quoted text clipped - 5 lines]
> You need to save the file on to your computer, and open it with an EXIF
> viewer that reads all of the fields.
oops - change that - EXIFRead didn't read it.
PTLens did.
With the other (telephoto) image PTLens identifies it as a 28-300
f3.5-5.6 EF L @ 200mm.
Thomas T. Veldhouse - 22 Feb 2007 21:39 GMT
> oops - change that - EXIFRead didn't read it.
> PTLens did.
> With the other (telephoto) image PTLens identifies it as a 28-300
> f3.5-5.6 EF L @ 200mm.

You get what you pay for with a 28-300 lens.

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Skip - 07 Feb 2007 14:01 GMT
> And there is no identification of the actual
>> lens used, is there?
>
> The lens data is in the EXIF of the jpeg.

By the way, in light of the lack of lens ID, if that were a Canon lens, I'd
suspect that it's a 24-105 f4, given the focal lengths and apertures used.
The tele shot maybe, if it's a Canon, a 70-200 f2.8L, but there are other
mfrs who produce that focal length and aperture in a lens.  And the
"vignetting" in the first shot isn't vignetting, I'd suspect the
photographer is shooting through something that causes the effect at the
edges.

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Skip Middleton
www.shadowcatcherimagery.com
www.pbase.com/skipm

Spam THis - 09 Feb 2007 00:35 GMT
>> And there is no identification of the actual
>>> lens used, is there?
[quoted text clipped - 7 lines]
> photographer is shooting through something that causes the effect at the
> edges.

Too bad the EXIF data doesn't record what filter was mounted! The second
image sure looks like a filter is vignetting
http://www.pbase.com/logear/image/70768650
RichA - 07 Feb 2007 23:21 GMT
> >> I had a look at it in PTLens - and it's beyond repair IMO.
> >> I thought an expensive lens like 16-35 f2.8L would not be so bad.
[quoted text clipped - 12 lines]
> for the poorly fitted hood.  And there is no identification of the actual
> lens used, is there?

You are talking rubbish.  We see this all the time and you can't blame
it on a lens hood.
Reviews SAID that the 17-40L (for instance) has FIVE STOPS of light
fall off at the edge of the frame with
FF Canons.  In addition, one of those shots is with a 200mm lens!
What did he do, put a foot long lens hood on it??
Skip - 08 Feb 2007 02:27 GMT
On Feb 6, 10:58 pm, "Skip" <shadowcatc...@cox.net> wrote:
> "Rita Ä Berkowitz" <ritaberk2O04 @aol.com> wrote in
> messagenews:12si4pp7auhcj94@news.supernews.com...
[quoted text clipped - 21 lines]
> for the poorly fitted hood.  And there is no identification of the actual
> lens used, is there?

>You are talking rubbish.  We see this all the time and you >can't blame
>it on a lens hood.
>Reviews SAID that the 17-40L (for instance) has FIVE >STOPS of light
>fall off at the edge of the frame with
>FF Canons.  In addition, one of those shots is with a >200mm lens!
>What did he do, put a foot long lens hood on it??

Rich, you are the one talking rubbish.  You don't have the lens, have never
used the lens, and probably have no intention of finding out if the rubbish
you spew is based in fact.  The dark, and sharp, edges of the alleged
vignetting show that it is not light fall off, it is something blocking the
light.
Show me a review, other than yours, that shows 5 stops of light falloff.
You can't, because it doesn't exist.  1-2 stops is all anyone reputable has
come up with.
The second shot is not vignetting, either.  As I said, it looks as if the
photographer is shooting through something, like vertical blinds.  I've
gotten a similar effect when shooting through a chain link fence, but
square, rather than just on the sides.
Keep showing how much of a fool you are, Rich, you have absolutely no
credibility.  Even Rita doesn't give you any, he just takes it as an
opportunity to spout more about the Nikkor.

Signature

Skip Middleton
www.shadowcatcherimagery.com
www.pbase.com/skipm

RichA - 08 Feb 2007 05:05 GMT
> On Feb 6, 10:58 pm, "Skip" <shadowcatc...@cox.net> wrote:
>
[quoted text clipped - 48 lines]
> --
> Skip Middletonwww.shadowcatcherimagery.comwww.pbase.com/skipm

Go out with your 5D (you do own one, right?) take your 17-40L lens
(you do own one, right?)
take a shot of a uniform area like the sky, -1 stop down with the lens
set at f5.6, f4.0 and f2.8.
Then pretend there is no vignetting.
Mark² - 08 Feb 2007 05:19 GMT
>> On Feb 6, 10:58 pm, "Skip" <shadowcatc...@cox.net> wrote:
>>
[quoted text clipped - 54 lines]
> set at f5.6, f4.0 and f2.8.
> Then pretend there is no vignetting.

He said he's never seen a reputable review showing more than one or two
stops.
You know, Rich, it's pretty easy to pretend you're right when you argue
against things nobody has said.
-Or perhaps you can show me where Skip said there is zero vignetting?
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RichA - 09 Feb 2007 01:56 GMT
On Feb 8, 12:19 am, "Mark²" <mjmorgan(lowest even number
here)@cox..net> wrote:
> >> "RichA" <rander3...@gmail.com> wrote in message
>
[quoted text clipped - 64 lines]
> -Or perhaps you can show me where Skip said there is zero vignetting?
> --

Fine.  He didn't say "no vignetting." The vignetting is documented
enough on the net.
When Canon finally does release lenses that don't (if they ever see
fit to) you people will be fawning all over them.  Then MAYBE you'll
admit a problem exists with the current ones.
IMO, vignetting runs a distant second to other edge ruining
aberrations that can't be corrected in software.
Mark² - 09 Feb 2007 03:27 GMT
> On Feb 8, 12:19 am, "Mark²" <mjmorgan(lowest even number
> here)@cox..net> wrote:
[quoted text clipped - 75 lines]
> IMO, vignetting runs a distant second to other edge ruining
> aberrations that can't be corrected in software.

Who is fawning?  There is definitely some vignetting at super-wide with
large apertures.
When someone comes up with a better alternative, I'll consider that
alternative.  Simple, really, and not the big deal you seem to think it is.

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RichA - 09 Feb 2007 23:57 GMT
On Feb 8, 10:27 pm, "Mark²" <mjmorgan(lowest even number
here)@cox..net> wrote:
> > On Feb 8, 12:19 am, "Mark²" <mjmorgan(lowest even number
> > here)@cox..net> wrote:
[quoted text clipped - 80 lines]
> When someone comes up with a better alternative, I'll consider that
> alternative.  Simple, really, and not the big deal you seem to think it is.

So the 200mm image edge darkening was all due to the lens hood?
Why should this vignetting surprise anyone?  I see vignetting with
most lenses, but rarely as severe as that.
Mark² - 10 Feb 2007 02:45 GMT
> On Feb 8, 10:27 pm, "Mark²" <mjmorgan(lowest even number
> here)@cox..net> wrote:
[quoted text clipped - 88 lines]
> Why should this vignetting surprise anyone?  I see vignetting with
> most lenses, but rarely as severe as that.

It has to be that, or some other obstruction.  I haven't seen that on my
200mm lens.  WIDE angle at large apertures show some vignetting, but that
shot is far from wide angle.

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Rita Ä Berkowitz - 10 Feb 2007 13:05 GMT
> Fine.  He didn't say "no vignetting." The vignetting is documented
> enough on the net.
[quoted text clipped - 3 lines]
> IMO, vignetting runs a distant second to other edge ruining
> aberrations that can't be corrected in software.

Canon's 50/1.2 was supposed to be the new "Noct Killer" to hit the streets.
Still amazingly enough most serious Canon shooters would rather spend
$3,000+ for an old used worn out Noct than they would a brand new shiny
Canon 50/1.2 at $1,500.  The day Canon makes a lens that performs will be
the day I throw all my Nikon gear in the dumpster.

Rita
RichA - 11 Feb 2007 00:47 GMT
> > Fine.  He didn't say "no vignetting." The vignetting is documented
> > enough on the net.
[quoted text clipped - 11 lines]
>
> Rita

I think if Canon had intended to do this, they'd have done it long
ago.  They haven't dragged their feet when it comes to sensors, but
for whatever reason, they've decided to minimize their efforts on some
lenses.  Odd, coming from a company that has the material means to do
much better.
Alan Browne - 11 Feb 2007 17:02 GMT
>> Fine.  He didn't say "no vignetting." The vignetting is documented
>> enough on the net.
[quoted text clipped - 9 lines]
> Canon 50/1.2 at $1,500.  The day Canon makes a lens that performs will be
> the day I throw all my Nikon gear in the dumpster.

You're well past the "dumster dues" date by your statement above.

As I've mentioned to you before, Canon and others have lenses that
outsharp / outcontrast the nominally equivalent Nikkor.  Everyone can
play the cherry picking game and come up with the "best line" from each
manufacturer that makes the others look less than stellar.  You can
cherry pick a Nikkor line too.  And you should.

As to the 58mm Noct it is a very limited interest lens, now out of
production and a rarity.  That's where the high street price comes from.
  If it was such a "hot" lens, Nikon would be making them (or an
updated version) still.

As Canon are actually selling 50 f/1.2's, the price reflects cost and
sales volume.

While I prefer the Nikon metering system to Canon, if it came to a
choice it would be hands down Canon.  As much for the lenses as any
other factor.

Cheers,
Alan

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RichA - 11 Feb 2007 18:58 GMT
On Feb 11, 12:02 pm, Alan Browne <alan.bro...@Freelunchvideotron.ca>
wrote:

> >> Fine.  He didn't say "no vignetting." The vignetting is documented
> >> enough on the net.
[quoted text clipped - 17 lines]
> manufacturer that makes the others look less than stellar.  You can
> cherry pick a Nikkor line too.  And you should.

As they do, as the poster pointed out.  But you know what some people
(fanatical, admittedly) who own the 5D are doing?  Having the mirrors
"shaved" down to allow Leica lenses to fit.  Not THATS a statement of
lens quality if every there was one!

> As to the 58mm Noct it is a very limited interest lens, now out of
> production and a rarity.  That's where the high street price comes from.
[quoted text clipped - 3 lines]
> As Canon are actually selling 50 f/1.2's, the price reflects cost and
> sales volume.

I'm pretty sure Canon "cheaped down" that lens for modern
consumption.   A 50mm lens with a handground aspherical element (as
opposed to molded, cast or pressed) would cost far more than their
current offering.

Some info on earlier 50mm lenses:

http://www.mir.com.my/rb/photography/companies/canon/fdresources/fdlenses/50mm.htm

> While I prefer the Nikon metering system to Canon, if it came to a
> choice it would be hands down Canon.  As much for the lenses as any
> other factor.

I think Canon macro and long, fast teles are pretty good, from most
accounts.
Mark² - 11 Feb 2007 21:05 GMT
> On Feb 11, 12:02 pm, Alan Browne <alan.bro...@Freelunchvideotron.ca>
> wrote:
[quoted text clipped - 26 lines]
> "shaved" down to allow Leica lenses to fit.  Not THATS a statement of
> lens quality if every there was one!

Who is doing this?
-Someone who already HAS Leica lenses, and figures they may as well utilize
them...  I'd put money on the assertion that nobody is doing that who
doesn't already own the glass...

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Ståle Sannerud - 12 Feb 2007 15:15 GMT
>> As they do, as the poster pointed out.  But you know what some people
>> (fanatical, admittedly) who own the 5D are doing?  Having the mirrors
[quoted text clipped - 5 lines]
> utilize them...  I'd put money on the assertion that nobody is doing that
> who doesn't already own the glass...

That's a bet you would actually lose, unless the guys at the "alternative
systems" forum on fredmiranda are full of it. To those guys, prized "L"
glass for their 5D's doesn't come with a red ring.
Rita Ä Berkowitz - 12 Feb 2007 22:28 GMT
>> Who is doing this?
>> -Someone who already HAS Leica lenses, and figures they may as well
[quoted text clipped - 4 lines]
> "alternative systems" forum on fredmiranda are full of it. To those
> guys, prized "L" glass for their 5D's doesn't come with a red ring.

You got it!  They lust for the classic Nikkors.

Rita
Ståle Sannerud - 13 Feb 2007 08:52 GMT
>> That's a bet you would actually lose, unless the guys at the
>> "alternative systems" forum on fredmiranda are full of it. To those
>> guys, prized "L" glass for their 5D's doesn't come with a red ring.
>
> You got it!  They lust for the classic Nikkors.

In your dreams, maybe.

Leica. Or simetimes Zeiss. Not often Nikkor.
Skip - 13 Feb 2007 04:51 GMT
>>> As they do, as the poster pointed out.  But you know what some people
>>> (fanatical, admittedly) who own the 5D are doing?  Having the mirrors
[quoted text clipped - 9 lines]
> systems" forum on fredmiranda are full of it. To those guys, prized "L"
> glass for their 5D's doesn't come with a red ring.

That doesn't contradict what Mark said, from what I read on FM, those guys
did have the glass, already.

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www.shadowcatcherimagery.com
www.pbase.com/skipm

Mark² - 13 Feb 2007 06:24 GMT
>>>> As they do, as the poster pointed out.  But you know what some
>>>> people (fanatical, admittedly) who own the 5D are doing?  Having
[quoted text clipped - 12 lines]
> That doesn't contradict what Mark said, from what I read on FM, those
> guys did have the glass, already.

Right.
And the point is simple:  Very FEW folks are doing this.

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Ståle Sannerud - 13 Feb 2007 08:53 GMT
>> That doesn't contradict what Mark said, from what I read on FM, those
>> guys did have the glass, already.
>
> Right.
> And the point is simple:  Very FEW folks are doing this.

I'd say you'd have to be pretty damned anal about your photography to accept
all that hassle, yes.
David Littlewood - 13 Feb 2007 09:55 GMT
>>>>> As they do, as the poster pointed out.  But you know what some
>>>>> people (fanatical, admittedly) who own the 5D are doing?  Having
[quoted text clipped - 15 lines]
>Right.
>And the point is simple:  Very FEW folks are doing this.

Mark,

You think these two  (or is it three*) jokers want to pay attention to
trivial distractions like facts? They are having too much fun in
whatever la-la land they occupy.

*They must be breeding - serves us right for feeding them.

David
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Rita Ä Berkowitz - 13 Feb 2007 23:17 GMT
> You think these two  (or is it three*) jokers want to pay attention to
> trivial distractions like facts? They are having too much fun in
> whatever la-la land they occupy.

LOL! Some people, mostly Canon users, get caught up with trying to save face
instead of accepting the fact that WA Nikkors work so much better on the 5D
than anything Canon can produce.  Hey, if you're happy shooting with
substandard lenses, by all means knock yourself out.

Rita
David Littlewood - 14 Feb 2007 01:40 GMT
>> You think these two  (or is it three*) jokers want to pay attention to
>> trivial distractions like facts? They are having too much fun in
[quoted text clipped - 4 lines]
>than anything Canon can produce.  Hey, if you're happy shooting with
>substandard lenses, by all means knock yourself out.

If you read what I wrote (and what I was responding to), instead of just
repeating your views, you will see that I have made no comment of any
kind about how good Nikkors would be on a Canon body. I have never tried
it, and I try to avoid expressing specific views about things of which I
have no direct knowledge.

What I actually commented on was assertions such as "most serious Canon
shooters would rather spend $3,000 for an old worn out Noct than they
would a brand new shiny Canon 50/1.2 at $1,500" (posted 1:05:52 on 10
February). I have never met, or seen, such a person, and at least in the
UK have never seen it commented on in the photographic press. Tony
Polson gave a much more sensible view: "Still, I would not pretend that
this community (i.e. those using kludges to fit other brand lenses)
represents a large proportion of Canon DSLR users".

David
Signature

David Littlewood

Rita Ä Berkowitz - 14 Feb 2007 12:53 GMT
>> LOL! Some people, mostly Canon users, get caught up with trying to
>> save face instead of accepting the fact that WA Nikkors work so much
[quoted text clipped - 6 lines]
> never tried it, and I try to avoid expressing specific views about
> things of which I have no direct knowledge.

LOL!  Right!  You've been doing a good job of bashing the D40 even though
you haven't tried one.  Have you tried the D200?  I'll venture a guess not.

> What I actually commented on was assertions such as "most serious
> Canon shooters would rather spend $3,000 for an old worn out Noct
[quoted text clipped - 5 lines]
> kludges to fit other brand lenses) represents a large proportion of
> Canon DSLR users".

It would seem like you are overestimating your importance again.  What
bearing does your observations or lack of have on the real world?

Rita
David Littlewood - 14 Feb 2007 15:41 GMT
>>> LOL! Some people, mostly Canon users, get caught up with trying to
>>> save face instead of accepting the fact that WA Nikkors work so much
[quoted text clipped - 10 lines]
>though you haven't tried one.  Have you tried the D200?  I'll venture a
>guess not.

You seem determined to prove you are not following the plot. I do not
recall ever mentioning the Nikon D40 here, or in any other forum. I have
no first-hand knowledge of it. All the published comments I have seen
about it seem favourable. Where do you allege I made these comments.

>> What I actually commented on was assertions such as "most serious
>> Canon shooters would rather spend $3,000 for an old worn out Noct
[quoted text clipped - 8 lines]
>It would seem like you are overestimating your importance again.  What
>bearing does your observations or lack of have on the real world?

Initially, about as much as yours. As you go on your current path ...
well, I'll let others judge.

David
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David Littlewood

Rita Ä Berkowitz - 14 Feb 2007 19:19 GMT
>> LOL!  Right!  You've been doing a good job of bashing the D40 even
>> though you haven't tried one.  Have you tried the D200?  I'll
[quoted text clipped - 5 lines]
> seen about it seem favourable. Where do you allege I made these
> comments.

It must be a terminal case of oldtimer's disease setting in or you find it
necessary to use selective memory?  Which is it?  It must have been some
other David Little"wood" that was crying like a child about the D40 not
having an AF drive motor.  Like if anyone really cares your comments are
archived in Google should they want to refresh their memory.

>> It would seem like you are overestimating your importance again. What
>> bearing does your observations or lack of have on the real
>> world?
> Initially, about as much as yours. As you go on your current path ...
> well, I'll let others judge.

Unlike you, I'm not trying to convince anybody of anything.  My comments are
put out for the reader's general information and entertainment.  And should
they fail to get either from my comments that's on them, not me.

Rita
John McWilliams - 14 Feb 2007 22:24 GMT
> My comments are
> put out for the reader's general information and entertainment.  And should
> they fail to get either from my comments that's on them, not me.

<<Encroyable>>.

The height of his (/"Rita's"/) arrogance.

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lsmft

David Littlewood - 14 Feb 2007 22:37 GMT
>>> LOL!  Right!  You've been doing a good job of bashing the D40 even
>>> though you haven't tried one.  Have you tried the D200?  I'll
[quoted text clipped - 11 lines]
>having an AF drive motor.  Like if anyone really cares your comments are
>archived in Google should they want to refresh their memory.

I repeat, I have never made a single comment, anywhere, about the D40.
If you think I did, prove it with a reference.

>>> It would seem like you are overestimating your importance again. What
>>> bearing does your observations or lack of have on the real
[quoted text clipped - 5 lines]
>put out for the reader's general information and entertainment.  And should
>they fail to get either from my comments that's on them, not me.

I think that just about says all we need to know.

David
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David Littlewood

Tony Polson - 13 Feb 2007 10:39 GMT
>>>>> As they do, as the poster pointed out.  But you know what some
>>>>> people (fanatical, admittedly) who own the 5D are doing?  Having
[quoted text clipped - 15 lines]
>Right.
>And the point is simple:  Very FEW folks are doing this.

On the contrary, many have.  Mass production of Leica R and Contax to
EF mount adapters plus the significant rise in used prices of Leica
and Contax glass is no coincidence.

It has now become difficult to find used Leica R and Contax lenses
because so many of them are doing duty on Canon EOS DSLR bodies.

I'm partly responsible, with six Contax lenses.  ;-}

Still, I would not pretend that this community represents a large
proportion of Canon DSLR users.
Skip - 14 Feb 2007 05:14 GMT
>>>>>> As they do, as the poster pointed out.  But you know what some
>>>>>> people (fanatical, admittedly) who own the 5D are doing?  Having
[quoted text clipped - 27 lines]
> Still, I would not pretend that this community represents a large
> proportion of Canon DSLR users.

But, Tony, are they buying the Leica R and Contax lenses after they buy the
5D, or did they already own them before they bought the 5D?

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Tony Polson - 14 Feb 2007 11:04 GMT
>>>And the point is simple:  Very FEW folks are doing this.
>>
[quoted text clipped - 12 lines]
>But, Tony, are they buying the Leica R and Contax lenses after they buy the
>5D, or did they already own them before they bought the 5D?

Personally, I bought all my Contax lenses after buying the 5D.

However, I am sure that many Leica R and Contax users must have seen
the Canon EOS 5D (or 1Ds) as the perfect upgrade path to digital,
subject to the limitatons of using an adapter.  So you have a point.

On the other hand, the online forums at FredMiranda.com do suggest
that many Canon users have picked up Leica R and Contax glass to use
on their Caon DSLR bodies.  

As to the split of numbers of Leica R/Contax users upgrading to
digital, versus the numbers of Canon owners discovering the delights
of "German" glass, that is anyone's guess.  And I would not even want
to hazard a guess as to what that split might be.

I use the word "German" with care because much of the Leica glass used
was made in Canada or even Japan, and most of the Carl Zeiss for
Contax glass came from Kyocera Yashica.
Rita Ä Berkowitz - 14 Feb 2007 12:53 GMT
>> Still, I would not pretend that this community represents a large
>> proportion of Canon DSLR users.
>>
> But, Tony, are they buying the Leica R and Contax lenses after they
> buy the 5D, or did they already own them before they bought the 5D?

Which came first, the chicken or the egg?  Does it really matter?  The whole
idea that someone is doing it speaks volumes about Canon's inability to make
anything beyond mediocre WA glass.  You have even demonstrated your disgust
in the 16-35/2.8.  It's sad when you have to crop off 35% of an image to
hide the defects since "nobody cares or looks at the corners."

Rita
Skip - 14 Feb 2007 13:05 GMT
>>> Still, I would not pretend that this community represents a large
>>> proportion of Canon DSLR users.
[quoted text clipped - 10 lines]
> in the 16-35/2.8.  It's sad when you have to crop off 35% of an image to
> hide the defects since "nobody cares or looks at the corners."

Rita, find a single instance of me "demonstrating" my disgust with that
lens.  Go on, show us all.  And then show us side by side comparisons of the
Nikkor 17-35 and the Canon 16-35, wide open, and the widest focal length, on
the 5D.  You're really the only person here capable of doing so, since you
have the 5D, Nikkor and the adaptor for it.
Time to prove your point, rather than just babble about it.

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Rita Ä Berkowitz - 14 Feb 2007 13:24 GMT
>> Which came first, the chicken or the egg?  Does it really matter? The
>> whole
[quoted text clipped - 13 lines]
> adaptor for it. Time to prove your point, rather than just babble
> about it.

Wasn't it you that claimed, "nobody cares or looks at the corners" or is
there another Skip out here?  Like you, I'll just give the lame excuse that
"it's not worth it to me renting" a 16-35.  Maybe you'd send me yours for a
few days?  Naw, never mind...  Hey, in the end it really doesn't matter,
does it?  Your happy with vignetting and major light fall off and I'm happy
with clear crisp images.

Rita
Skip - 15 Feb 2007 00:50 GMT
>>> Which came first, the chicken or the egg?  Does it really matter? The
>>> whole
[quoted text clipped - 23 lines]
> happy
> with clear crisp images.

I didn't claim that, and that hardly "demonstrates" any disgust with the
lens, anyway.  And for me, it's a case of purchasing the adaptor, not
renting the lens.  I don't have to rent it, I can snag one on load for a
little while, long enough to use it, anyway.  You already have the adaptor,
so, what the heck.  And I'm happy with images that are sharp, too,
especially with the 16-35 wide open, which is where it spends an awful lot
of time.

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Rita Ä Berkowitz - 15 Feb 2007 02:44 GMT
>> Wasn't it you that claimed, "nobody cares or looks at the corners"
>> or is there another Skip out here?  Like you, I'll just give the
[quoted text clipped - 13 lines]
> are sharp, too, especially with the 16-35 wide open, which is where
> it spends an awful lot of time.

Buy the adapter and borrow the legendary 17-37/2.8 so you can see what
you're missing.  It's a shame you have to crop 35% of an image taken with
the 16-35/2.8.  So sad.

Rita
Skip - 15 Feb 2007 03:30 GMT
>>> Wasn't it you that claimed, "nobody cares or looks at the corners"
>>> or is there another Skip out here?  Like you, I'll just give the
[quoted text clipped - 17 lines]
> you're missing.  It's a shame you have to crop 35% of an image taken with
> the 16-35/2.8.  So sad.

I don't, and what do you do about the soft center image when you have to use
the 17-35 wide open?
I guess you just don't have the stones to back up your claims...

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Rita Ä Berkowitz - 15 Feb 2007 03:59 GMT
>> Buy the adapter and borrow the legendary 17-37/2.8 so you can see
>> what you're missing.  It's a shame you have to crop 35% of an image
>> taken with the 16-35/2.8.  So sad.
>
> I don't, and what do you do about the soft center image when you have
> to use the 17-35 wide open?

Tell people that I'm shooting L glass, they understand and sympathize.

> I guess you just don't have the stones to back up your claims...

Nope.

Rita
Skip - 15 Feb 2007 05:20 GMT
>>> Buy the adapter and borrow the legendary 17-37/2.8 so you can see
>>> what you're missing.  It's a shame you have to crop 35% of an image
[quoted text clipped - 4 lines]
>
> Tell people that I'm shooting L glass, they understand and sympathize.

If they shoot L glass, they wouldn't believe you

>> I guess you just don't have the stones to back up your claims...
>
> Nope.

Thought not.
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Mark² - 15 Feb 2007 05:20 GMT
>>>> Wasn't it you that claimed, "nobody cares or looks at the corners"
>>>> or is there another Skip out here?  Like you, I'll just give the
[quoted text clipped - 21 lines]
> to use the 17-35 wide open?
> I guess you just don't have the stones to back up your claims...

You're far too patient, Skip.
Kill file the "gentleman" and let him crawl back under his bridge...

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Skip - 15 Feb 2007 13:37 GMT
>>>>> Wasn't it you that claimed, "nobody cares or looks at the corners"
>>>>> or is there another Skip out here?  Like you, I'll just give the
[quoted text clipped - 24 lines]
> You're far too patient, Skip.
> Kill file the "gentleman" and let him crawl back under his bridge...

If I kill filed him, I couldn't bait him.  But it has gotten tiresome, which
is why I called his bluff.  He folded, so I'll walk away from the table.
Besides, I've got about 400 images of a girl (I WAY over shot, but she was
cute!) to edit down by Sunday, so I don't have the time to play around,
here.

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Rita Ä Berkowitz - 15 Feb 2007 22:40 GMT
> If I kill filed him, I couldn't bait him.  But it has gotten
> tiresome, which is why I called his bluff.  He folded, so I'll walk
> away from the table. Besides, I've got about 400 images of a girl (I
> WAY over shot, but she was cute!) to edit down by Sunday, so I don't
> have the time to play around, here.

You only walked away from the table in disgust and shame because you
couldn't bait me.  That's why I gave you a simple and straightforward "NO"
to your childish pissing contest.  I mean, Skip, you really shouldn't get
disgusted since my only goal was to simply help you improve your WA
performance.  What's the point of using FF when you have to surgically
remove 35% of an image by cropping?  That being the case, you might as well
just slap the old 16-35/2.8 on a 20D so you can hide those pesky corners.

Oh, you can killfile me if you want.  It won't change the facts since it
didn't in Mark's case.  Look at Mark, he "claims" he has me in there, but he
knows he hasn't the balls to admit he's wrong and live up to his end of his
little pissing contest by honoring his word he voluntarily agreed to.
Shameful.  I have more respect for you Skip. That's why I was trying to help
you with your WA dilemma.

Rita
Skip - 16 Feb 2007 00:50 GMT
>> If I kill filed him, I couldn't bait him.  But it has gotten
>> tiresome, which is why I called his bluff.  He folded, so I'll walk
[quoted text clipped - 20 lines]
> help
> you with your WA dilemma.

That was not a "childish pissing contest."  That was a call for you to back
up what you say, since you provide no evidence that what you say is the
truth.  The only way you could actually help anyone, including me, is to
show an actual comparison of the two lenses.  So far, all the evidence
you've ever provided was a link to a site on which, besides the extremely
over sharpened Nikon and Leica images, the Nikoncentric site owner conceded
that the 16-35 Canon was sharper at the center, wide open, than the Nikkor
equivalent.  Since the reason I even own the lens is the need to shoot it
wide and wide open, having a lens that is less sharp under those conditions
would be not only silly, but a disservice to my clients.  Not to mention the
fact that the Nikkor won't function as designed on my 5D, i.e. it won't
autofocus.
I don't have to crop by 35%, I'm not cropping by any more than to change the
ratio from 3:2 to 4:5, if that.  We're talking just a few millimeters in any
given direction.
My disgust is only about your refusal to actually provide evidence that
backs up your outlandish claims, not just about the 17-35 vs the 16-35, but
other Canon lenses, too.  You were not trying to help me, or anyone else.
You were just engaging in empty crowing, and you know it.
You are way too predictable.  And you have not added anything useful to the
conversation, at any point, despite what you say.  Because you have not
backed up what you've said.

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Rita Ä Berkowitz - 16 Feb 2007 03:02 GMT
>>> If I kill filed him, I couldn't bait him.  But it has gotten
>>> tiresome, which is why I called his bluff.  He folded, so I'll walk
>>> away from the table. Besides, I've got about 400 images of a girl (I
>>> WAY over shot, but she was cute!) to edit down by Sunday, so I don't
>>> have the time to play around, here.

> My disgust is only about your refusal to actually provide evidence
> that backs up your outlandish claims, not just about the 17-35 vs the
[quoted text clipped - 3 lines]
> useful to the conversation, at any point, despite what you say. Because
> you have not backed up what you've said.

Come on Skip, you're not fooling me, but I know you might be fooling
yourself.  As I said earlier, and you have admitted that you're just baiting
me.  I have no problems backing up what I say.  I will do it on my terms,
not yours or anyone else's.  You're playing the same childish game Mark
played.  I knew Mark wouldn't live up to his end of the bargain, but I still
gave him the benefit of the doubt.  Like Mark, you are as predictable.  Just
in case you forgot what you said a couple posts back, "If I kill filed him,
I couldn't bait him."  Like the old saying, "Toby doesn't play these games."

As for the images from the 5D with the 17-35/2.8, I'll tell you what Mark
told me, "I'll post them when I get around to it."  The difference is I will
post my images.

Rita
Skip - 16 Feb 2007 04:20 GMT
>>>> If I kill filed him, I couldn't bait him.  But it has gotten
>>>> tiresome, which is why I called his bluff.  He folded, so I'll walk
[quoted text clipped - 28 lines]
> will
> post my images.

I don't care on whose terms you do it, just do it.
And what "childish game" is it I'm supposed to be playing?  Or, for that
matter, Mark?

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Mark² - 16 Feb 2007 06:07 GMT
>>>>> If I kill filed him, I couldn't bait him.  But it has gotten
>>>>> tiresome, which is why I called his bluff.  He folded, so I'll
[quoted text clipped - 32 lines]
> And what "childish game" is it I'm supposed to be playing?  Or, for
> that matter, Mark?

I think he's referring to my office picture...where I used IS at wide angle
and slow shutter speed.  Rita crapped a brick over that, and blathered on
and on about how IS is useless for anything below 50mm.  Sheesh, is he still
obsessing over that?  He seems to think that any time some arse such as
himself asks for a test comparison within the context of his being a
complete a.s, that I'm supposed to jump.  What a laugh.  Frankly I don't see
what the beef is.  It's true that there is much less to be gained using IS
at wide angle.  So what?  I shot at 24mm at 1/10th and 1/4th second using
IS, which Rita feels is pointless.  I think he said something like "lean
against the door frame" or some such suggestion...as though my goal was to
photograph my office.  :)  I wanted to shoot an image where I specifically
did NOT use bracing...since (shock and horror) there ARE times where there
is nothing to brace against but your own face or other body part...so I
tried just that.  What's funny to me is that he's apparently been an
complete a.s over that for MONTHS...even with no direct contact with me.
He's either obsessive-compulsive, has no life aside from me...or he's in
love with me (possible...seeing as he's a man using a woman's name, for
crying out loud).  I guess what it really comes down to is, as evidenced by
what I do see of his posts) the fact that Rita is simply an a.s in
general...so I shouldn't be surprised.  I did a little comparison with and
without IS, and to a certain extent, and as I've said...it becomes less and
less beneficial the wider you go...but not to the point of making ZERO
difference up to 50mm as he likes to insist.  If you're reading this,
Rita...give it a rest...or...continue with your pathetic little obsession.
Whatever, chum.  We're in partial agreement here, but if you're going to
piss and moan on and on because I don't completely agree...that's your own
moronic problem, and I could give a rat's arse whether you obsess for the
next year or ten.  Personally, I don't see anything from Rita other than
echoes of his constant trolling via other people's posted quotes.  RIP,
Rita...or whatever your real chump name is...  Go back to shooting ducks in
a pond, or whatever it is you do with your camera...

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Rita Ä Berkowitz - 16 Feb 2007 11:08 GMT
>> I don't care on whose terms you do it, just do it.
>> And what "childish game" is it I'm supposed to be playing?  Or, for
[quoted text clipped - 6 lines]
> time some arse such as himself asks for a test comparison within the
> context of his being a complete a.s, that I'm supposed to jump.

LOL!  No obsession, I just foolishly expected and predicted you wouldn't
live up to your end of the agreement of posting your pictures after I posted
mine.  We both know you were wrong, but the child in you doesn't let you
admit this in public.  Same applies to Skip, he knows the old 17-35/2.8
Nikkor is so much better than the 16-35/2.8 on the 5D that he won't admit it
in public.  He'd rather play your baiting game as a diversionary tactic.
BTW, how's that IS working on the wide end that you were bragging about?
LOL!

Rita
Rita Ä Berkowitz - 16 Feb 2007 11:08 GMT
>> As for the images from the 5D with the 17-35/2.8, I'll tell you what
>> Mark told me, "I'll post them when I get around to it."  The
>> difference is I will
>> post my images.
>
> I don't care on whose terms you do it, just do it.

No.

Rita
Skip - 16 Feb 2007 12:43 GMT
>>> As for the images from the 5D with the 17-35/2.8, I'll tell you what
>>> Mark told me, "I'll post them when I get around to it."  The
[quoted text clipped - 4 lines]
>
> No.

(shrug)

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David Littlewood - 14 Feb 2007 15:42 GMT
>>>> Still, I would not pretend that this community represents a large
>>>> proportion of Canon DSLR users.
[quoted text clipped - 17 lines]
>have the 5D, Nikkor and the adaptor for it.
>Time to prove your point, rather than just babble about it.

Skip, s/he won't, because s/he can't. Besides, random scattergun insults
are *so* much more fun, and easier...

David
Signature

David Littlewood

Rita Ä Berkowitz - 14 Feb 2007 19:20 GMT
> Skip, s/he won't, because s/he can't. Besides, random scattergun
> insults are *so* much more fun, and easier...

Why do you find it insulting that the 16-35/2.8 has so much light falloff?
That monkey is on your back, not mine since I use the legendary 17-35/2.8.

Rita
Skip - 15 Feb 2007 00:52 GMT
>> Skip, s/he won't, because s/he can't. Besides, random scattergun
>> insults are *so* much more fun, and easier...
>
> Why do you find it insulting that the 16-35/2.8 has so much light falloff?
> That monkey is on your back, not mine since I use the legendary 17-35/2.8.

Quit finding excuses to not prove your point, and do it.  Otherwise, your
"credibility" may suffer. ;-)

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Rita Ä Berkowitz - 15 Feb 2007 02:45 GMT
>> Why do you find it insulting that the 16-35/2.8 has so much light
>> falloff? That monkey is on your back, not mine since I use the
>> legendary 17-35/2.8.
>
> Quit finding excuses to not prove your point, and do it.  Otherwise,
> your "credibility" may suffer. ;-)

The legendary 17-35/2.8 Nikkor has no credibility issues.

Rita
Skip - 15 Feb 2007 03:31 GMT
>>> Why do you find it insulting that the 16-35/2.8 has so much light
>>> falloff? That monkey is on your back, not mine since I use the
[quoted text clipped - 4 lines]
>
> The legendary 17-35/2.8 Nikkor has no credibility issues.

It doesn't, you do.  Quit stalling and get to work.  Or are you afraid of
what you might find?

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Rita Ä Berkowitz - 15 Feb 2007 03:59 GMT
>> The legendary 17-35/2.8 Nikkor has no credibility issues.
>
> It doesn't, you do.  Quit stalling and get to work.  Or are you
> afraid of what you might find?

No worries on my end.

Rita
Skip - 15 Feb 2007 05:21 GMT
>>> The legendary 17-35/2.8 Nikkor has no credibility issues.
>>
>> It doesn't, you do.  Quit stalling and get to work.  Or are you
>> afraid of what you might find?
>
> No worries on my end.

The "lady" protests too much.

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ahall@no-spam-panix.com - 15 Feb 2007 00:21 GMT
>>>>> David Littlewood writes:

  David> Skip, s/he won't, because s/he can't. Besides, random scattergun
  David> insults are *so* much more fun, and easier...

Please do not feed the trolls, they like it and it just
increases the annoyance factor they crave.

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(Now reading Usenet in rec.photo.digital.slr-systems...)

RichA - 12 Feb 2007 17:47 GMT
On Feb 11, 4:05 pm, "Mark²" <mjmorgan(lowest even number
here)@cox..net> wrote:
> > On Feb 11, 12:02 pm, Alan Browne <alan.bro...@Freelunchvideotron.ca>
> > wrote:
[quoted text clipped - 31 lines]
> them...  I'd put money on the assertion that nobody is doing that who
> doesn't already own the glass...

You'd lose mightily.  There are plenty of instances of people who only
have Canon gear asking for advise on which alternate lens to buy.
Just read the forum messages if you are really curious.
Rita Ä Berkowitz - 12 Feb 2007 22:28 GMT
>> Who is doing this?
>> -Someone who already HAS Leica lenses, and figures they may as well
[quoted text clipped - 4 lines]
> have Canon gear asking for advise on which alternate lens to buy.
> Just read the forum messages if you are really curious.

You're not kidding!  After putting the 17-35/2.8 and Noct on the old 5D
those two lenses are now married to it.  They will never go back on the
Nikon dSLRs nor will the 5D ever be touched with Canon glass again.

Rita
Rita Ä Berkowitz - 11 Feb 2007 20:06 GMT
>> Canon's 50/1.2 was supposed to be the new "Noct Killer" to hit the
>> streets. Still amazingly enough most serious Canon shooters would
[quoted text clipped - 4 lines]
>
> You're well past the "dumster dues" date by your statement above.

Maybe or maybe not.

> As I've mentioned to you before, Canon and others have lenses that
> outsharp / outcontrast the nominally equivalent Nikkor.  Everyone can
> play the cherry picking game and come up with the "best line" from
> each manufacturer that makes the others look less than stellar.  You
> can cherry pick a Nikkor line too.  And you should.

They certainly aren't on the wide end.  Canon seems to have the edge in the
marketing department for IS on the long end.  And people that feel they need
IS/VR on 400mm+ lenses are gravitating towards Canon.  I've even briefly
thought about going long with Canon.  As for cherry picking, you're right.
There's no shame in using both platforms to get the best tools for your
needs.

> As to the 58mm Noct it is a very limited interest lens, now out of
> production and a rarity.  That's where the high street price comes
>   from. If it was such a "hot" lens, Nikon would be making them (or an
> updated version) still.

Well, from what I gather from what I've read the Noct and 28/1.4 were
discontinued because the manufacturing process contained lead and wasn't to
environmentally friendly.  How true this is I'm not sure, but I don't think
you'll find too many inner-city kids cutting teeth on a Noct.  I wish they
would introduce an AF-S version of the old Noct so that everyone can have
easy access to one.  Would it be as good as the classic?  I doubt it.

> As Canon are actually selling 50 f/1.2's, the price reflects cost and
> sales volume.

I'm really not convinced it costs Nikon or Canon a lot to make either one of
these lenses.  Personally, I would like to see Canon come up with some
killer glass.  I would buy it in a heartbeat.  I wonder how many 50/1.2s
Canon sold to date?  Any way to find out?

> While I prefer the Nikon metering system to Canon, if it came to a
> choice it would be hands down Canon.  As much for the lenses as any
> other factor.

Like I said a long time ago, if you are just starting out and trying to
decide which platform to chose it would come down to flipping a coin.

Rita
Alan Browne - 11 Feb 2007 20:33 GMT
>> As to the 58mm Noct it is a very limited interest lens, now out of
>> production and a rarity.  That's where the high street price comes
[quoted text clipped - 4 lines]
> discontinued because the manufacturing process contained lead and wasn't to
> environmentally friendly.  How true this is I'm not sure, but I don't think

That would do it, OTOH there are other "rare earth" elements used in
glass making that can make up for the change from lead.  RoHS rules in
Europe also have to be complied to (and Pb is abig no-no among many others).

> you'll find too many inner-city kids cutting teeth on a Noct.  I wish they
> would introduce an AF-S version of the old Noct so that everyone can have
[quoted text clipped - 8 lines]
> killer glass.  I would buy it in a heartbeat.  I wonder how many 50/1.2s
> Canon sold to date?  Any way to find out?

No idea.  The costs in these lenses are high as they cannot be done on
an automated serial production process (without at least a massive
capital investment which would also drive up the costs).  Each piece of
glass has a lot of "touch" labour on it.

>> While I prefer the Nikon metering system to Canon, if it came to a
>> choice it would be hands down Canon.  As much for the lenses as any
>> other factor.
>
> Like I said a long time ago, if you are just starting out and trying to
> decide which platform to chose it would come down to flipping a coin.

It comes down to the co. that has affordable FF sensors and control over
its own sensor fab and glass making.  That's Canon.

Nikon are beholden to Sony (or other sensor makers like Kodak if they go
that way).

Cheers,
Alan

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David Littlewood - 11 Feb 2007 23:17 GMT
>>> As to the 58mm Noct it is a very limited interest lens, now out of
>>> production and a rarity.  That's where the high street price comes
[quoted text clipped - 9 lines]
>Europe also have to be complied to (and Pb is abig no-no among many
>others).

Yes, we seem to have more than our fair share of terminally stupid
bureaucrats in Europe. How many SLR lenses do they think will end up in
landfill, and how much lead will leach out of the glass if they did?
Probably a lot less than the lead which is going to leach out of the
lead ore that will now be left in the ground!

The ancient Greeks had a wonderful proverb: "Those whom the gods wish to
destroy, they first make mad". I think the modern-day version should be
"Those whom the gods wish to destroy, they first give bureaucrats".

David

"If all the bureaucrats in the world were put in a line between here and
the Sun,
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.
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 the world would be a much better place.

(Anon)
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David Littlewood

Skip - 08 Feb 2007 06:22 GMT
www.pbase.com/skipm
On Feb 7, 9:27 pm, "Skip" <shadowcatc...@cox.net> wrote:
> "RichA" <rander3...@gmail.com> wrote in message
>
[quoted text clipped - 57 lines]
> --
> Skip Middletonwww.shadowcatcherimagery.comwww.pbase.com/skipm

>Go out with your 5D (you do own one, right?) take your 17-40L lens
>(you do own one, right?)
>take a shot of a uniform area like the sky, -1 stop down with the lens
>set at f5.6, f4.0 and f2.8.
>Then pretend there is no vignetting.

No, I do not have a 17-40, I have a 5D and a 16-35.  I've posted links to
images shot with the combination, wide open and stopped down to f8.  I never
said there was no vignetting, I said that what was in that image was not
vignetting, it appears to be a misaligned lens hood.  Is your reading
comprehension really that bad?
Just in case you don't remember those links I posted, and I know you looked
at them, because you commented on them, they are:
http://www.pbase.com/skipm/image/50900668
And:
http://www.pbase.com/skipm/image/50900669
And avoid the implication that I don't have the equipment in question, since
you don't, and you don't shoot any images of consequence with the equipment
in question, you really shouldn't go there.
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Skip Middleton
www.shadowcatcherimagery.com

achilleaslazarides@yahoo.co.uk - 09 Feb 2007 02:57 GMT
> Just in case you don't remember those links I posted, and I know you looked
> at them, because you commented on them, they are:http://www.pbase.com/skipm/image/50900668
> And:http://www.pbase.com/skipm/image/50900669

It's pretty bad wide open, isn't it! How is it at f/4? Closer to f/2.8
or to f/8?
achilleaslazarides@yahoo.co.uk - 09 Feb 2007 02:58 GMT
On Feb 9, 5:57 am, achilleaslazari...@yahoo.co.uk wrote:

> > Just in case you don't remember those links I posted, and I know you looked
> > at them, because you commented on them, they are:http://www.pbase.com/skipm/image/50900668
> > And:http://www.pbase.com/skipm/image/50900669
>
> It's pretty bad wide open, isn't it!

Bad=soft here.
Skip - 09 Feb 2007 03:06 GMT
> On Feb 9, 5:57 am, achilleaslazari...@yahoo.co.uk wrote:
>>
[quoted text clipped - 7 lines]
>
> Bad=soft here.

At the edges, yes, but don't forget that you have DOF issues involved, here,
too, on a lens that wide.

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Skip Middleton
www.shadowcatcherimagery.com
www.pbase.com/skipm

Skip - 09 Feb 2007 03:06 GMT
>> Just in case you don't remember those links I posted, and I know you
>> looked
[quoted text clipped - 4 lines]
> It's pretty bad wide open, isn't it! How is it at f/4? Closer to f/2.8
> or to f/8?

It's not nearly as bad as Rich makes it out to be, though.  One stop down,
it's closer to f2.8 than f8, of course.

Signature

Skip Middleton
www.shadowcatcherimagery.com
www.pbase.com/skipm

achilleaslazarides@yahoo.co.uk - 09 Feb 2007 03:10 GMT
> <achilleaslazari...@yahoo.co.uk> wrote in message
>
[quoted text clipped - 10 lines]
> It's not nearly as bad as Rich makes it out to be, though.  One stop down,
> it's closer to f2.8 than f8, of course.

I posted a reply to Rich, to the effect that I have shots from a Nikon
18-70 with a thick polariser that show the same effect (as well as
from various wideangles on my ancient Minolta XD7). I was asking
because it seems pretty soft to me compared to the 17-40 that I once
used for a while (although on a 20D, and I didn't use it much either).
Is it really that worse at f/4?
Rita Ä Berkowitz - 08 Feb 2007 22:50 GMT
> FF Canons.  In addition, one of those shots is with a 200mm lens!
> What did he do, put a foot long lens hood on it??

Hell no!  That's a Budweiser can.

Rita
achilleaslazarides@yahoo.co.uk - 09 Feb 2007 02:52 GMT
> > Rita, stop spreading and augmenting Rich's lies.  The 16-35 is nowhere near
> > as bad as that, and that obviously a poorly fitted or chosen lens hood on
[quoted text clipped - 8 lines]
> FF Canons.  In addition, one of those shots is with a 200mm lens!
> What did he do, put a foot long lens hood on it??

What do you see all the time? The effect seen on the photograph with
light being blocked at the edges (the one that is blocked) is very
obviously a too-thick filter or some other attachment to the front of
the lens. There's not much point arguing about it, I can show you
exactly the same effect on my Nikon 18-70mm with a polariser when wide
open at 18mm, and I also have some slides from a Minolta XD7 with who
knows what wide angle that I borrowed and fit a cheap polariser on.

It is true that there is some pretty impressive falloff on some of the
canon zooms, but this isn't an example of it (and it's not so
extreme).
frederick - 09 Feb 2007 03:27 GMT
> What do you see all the time? The effect seen on the photograph with
> light being blocked at the edges (the one that is blocked) is very
[quoted text clipped - 3 lines]
> open at 18mm, and I also have some slides from a Minolta XD7 with who
> knows what wide angle that I borrowed and fit a cheap polariser on.

I can see pretty much the same effect - but not quite such sharp and
severe cut-off with a Nikkor 18-70 @ either 18 or 70mm fully wide -
without any filter on at all.  Fortunately for that lens, the effect
essentially vanishes at >20mm or so (where the lens is a stellar
performer), or when stopped down. I thought it was the filter ring, but
a few test shots confirmed that it wasn't.
Even my ultra-wide Sigma 10-20 has no (mechanical) vignetting fully wide
@ 10mm with a normal (not slim) filter fitted - although it does have
similar (but better as it is less defined and more easily corrected)
light fall-off than the 18-70.  Not that you usually get real life
situations where you need to correct this - as @10mm illumination
in/from the sky varies wildly, a bit of light fall-off isn't noticed.
But I do routinely use PTLens to correct light fall-off when stitching
panoramas containing blue sky - and that is IMO the WTG for completely
banding-free stitched skies.
achilleaslazarides@yahoo.co.uk - 09 Feb 2007 03:46 GMT
> achilleaslazari...@yahoo.co.uk wrote:
> > the lens. There's not much point arguing about it, I can show you
[quoted text clipped - 8 lines]
> performer), or when stopped down. I thought it was the filter ring, but
> a few test shots confirmed that it wasn't.

OK, I almost never use that lens to be honest. Maybe I'll get it out
tomorrow and check (if I remember). But I have a polariser that, when
fitted to it, gives exactly this effect when wide open (ie it's too
thick).

> Even my ultra-wide Sigma 10-20 has no (mechanical) vignetting fully wide
> @ 10mm with a normal (not slim) filter fitted - although it does have
> similar (but better as it is less defined and more easily corrected)
> light fall-off than the 18-70.  Not that you usually get real life
> situations where you need to correct this - as @10mm illumination
> in/from the sky varies wildly, a bit of light fall-off isn't noticed.

Yes, the Sigma 10-20 is a suprisingly good lens. Besides the
vignetting (which isn't as bad as I'd expect) and slight softening on
the left bottom and when wide open  on mine, I can't complain (ok,
some flare too, but just look at the front element: of course it
flares if you push it). And it's built very well too, and has full-
time manual focusing, which I think is just as important. I was very
pleasantly surprised by it.
Ståle Sannerud - 12 Feb 2007 15:20 GMT
> Yes, the Sigma 10-20 is a suprisingly good lens. Besides the
> vignetting (which isn't as bad as I'd expect) and slight softening on
[quoted text clipped - 3 lines]
> time manual focusing, which I think is just as important. I was very
> pleasantly surprised by it.

For a "digital-only" lens it has a very impressive image circle. It can be
used on the Canon 1D series (not 1Ds obviously) with reasonable results.
There is mucho light falloff at the corners, but the image circle covers the
sensor from 12mm upwards.
Mark² - 07 Feb 2007 01:39 GMT
>> And here I thought it was only with WAs.  These are not my shots, I
>> noticed them after one of the shots was posted.
[quoted text clipped - 18 lines]
> I had a look at it in PTLens - and it's beyond repair IMO.
> I thought an expensive lens like 16-35 f2.8L would not be so bad.

That second image looks like blockage to me, too.  Lens vignetting isn't
that abrupt.

The FIRST image looks wrong, too.  The entire right side is dark, rather
than mainly the corners.  Normal vignetting doesn't look like that.
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Images (Plus Snaps & Grabs) by Mark² at:
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Bill Funk - 07 Feb 2007 15:35 GMT
>> And here I thought it was only with WAs.  These are not my shots, I
>> noticed them after one of the shots was posted.
[quoted text clipped - 18 lines]
>I had a look at it in PTLens - and it's beyond repair IMO.
>I thought an expensive lens like 16-35 f2.8L would not be so bad.

Where did you see which lens was used?
I looked at the EXIF info; it's not there.

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RichA - 14 Feb 2007 01:17 GMT
The idea of "fixing" vignetting in software only goes as far as
thinking that underexposed areas brought up to a normal level of
illumination somehow look identical to properly exposed areas.
Colour, noise, detail.  Does anyone believe that?
Bill Funk - 14 Feb 2007 20:16 GMT
> The idea of "fixing" vignetting in software only goes as far as
>thinking that underexposed areas brought up to a normal level of
>illumination somehow look identical to properly exposed areas.
>Colour, noise, detail.  Does anyone believe that?

I'll ask again:
"Where did you see which lens was used?
I looked at the EXIF info; it's not there."
I have no idea why you wrote the above in response to my question.

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