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Photo Forum / Digital Photography / Digital Photo / January 2006

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Canon!  How about producing a decent walk-a-round lens?

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Steve - 26 Jan 2006 19:35 GMT
Come on Canon, we want a decent walk-a-round lens for non-full frame DSLR's!
Ideally a 17-70 2.8L.

The only option at the moment is a slow lens.  Or alternatively a 16-35
F2.8L or a 24-70 2.8L.

My hand is staying in my pocket, although I have just been informed that
Sigma is producing a 18-50 EX f/2.8.  Sounds tempting.
Steve Wolfe - 26 Jan 2006 20:09 GMT
> Come on Canon, we want a decent walk-a-round lens for non-full frame DSLR's!
> Ideally a 17-70 2.8L.

 Remember that  "L" lenses aren't EF-S, they're EF.  Making a quality f/2.8
zoom that would go from 17-70mm on an EF mount (full frame) would be
prohibitively difficult and expensive.  Because of that, it's a near
certainty that you'll never see such a lens in the "L" series.

 But will you see it in the EF-S series?  It would certainly be much eaiser
to design such a lens if it only had to cover the APS-C sensor size.
However, it's still not going to be easy or cheap - most likely far more
expensive than an "EF-S" lens *should* cost, either from a marketing or
consumer standpoint.  Face it, a $1300 EF-S lens isn't going to do very
well, and certainly not a $2,000 model.  Considering that only one EF-S lens
reaches f/2.8 now - and that it's a prime - I just don't see an f/2.8 EF-S
zoom, let alone a *constant aperture* f/2.8 zoom.

 Furthermore, remember that while EF-S *is* here to stay, Canon is using
full-frame in lower models of cameras, and that right now, only their two
cheapest cameras have EF-S mounts.  In the future, that may very well change
to only one model.  Let's face it, making "L" quality glass that only works
on your one or two cheapest models isn't exactly a money-making endeavor.

 As to how much more development Canon will put into the EF-S lineup, Canon
is supposedly going to announce at least two new lenses at PMA.  Let's see
if any of them are EF-S, my guess is that they won't be.  That's not to say
that Canon won't introduce another one or two eventually, but that you're
just not going to see anything fantastic in that area.

steve
Steve - 26 Jan 2006 21:11 GMT
Good post Steve.

However, come on.  If Sigma can produce a 18-50mm F2.8 lens, then I don't
see why Canon can't.

10-22, 16-35 F2.8L or a 24-70 2.8L.  Yeah, nice to know, but doesn't
actually create a solution.

> > Come on Canon, we want a decent walk-a-round lens for non-full frame
> DSLR's!
[quoted text clipped - 27 lines]
>
> steve
Steve Wolfe - 27 Jan 2006 01:42 GMT
> However, come on.  If Sigma can produce a 18-50mm F2.8 lens, then I don't
> see why Canon can't.

 Sigma makes a lot of lenses that Canon won't, because Sigma isn't quite as
shy about turning out lenses that are a study in compromises.  Notice that
the 30 lp/mm MTF is pretty poor at a measly 13mm off-center, both at the
wide and the long end.  Even the 18-55mm Canon kit lens, at about $80, does
noticeably better.  Why does it do better?  Because wide zoom ranges and
decent performance are enough of a trade-off, when you add large apertures,
then you're *really* facing a herculean task.

So, let's imagine making this lens:  You design a lens that not only has to
perform a millimeter wider (which at those focal lengths is not entirely
insignificant), and 20mm longer.  Right there alone, in order to just keep
the same quality, you're going to have to add more elements and keep
tolerances much tighter, which means you've got to throw money at it.  Then,
because the aperture has to stay the same at a longer focal length, the
elements have to be larger - which compounds the increased costs from number
and tolerances.

 All in all, you're talking about a lens that would cost $700 at a minimum,
and more likely $800 to produce to the same quality level.  Now, here's the
rub:  Who's going to shell out $800 on a lens of only mediocre quality?  Not
many people.  You'd have to improve the quality where you could, increasing
the cost.  To make it even worse, Now you have to pitch that $800+ lens to
people who have bought one of your two least-expensive cameras.  That's not
a really good recipe for profits.

 Don't get me wrong, an EF-S 17-70 f/2.8 would be the bomb.  But from a
financial standpoint, it's just not going to happen.

steve
Paul Rubin - 27 Jan 2006 05:28 GMT
> > However, come on.  If Sigma can produce a 18-50mm F2.8 lens, then I don't
> > see why Canon can't.
>
>   Sigma makes a lot of lenses that Canon won't, because Sigma isn't quite as
> shy about turning out lenses that are a study in compromises.

I think Canon doesn't want to make expensive EF-S lenses because their
high end cameras have 1.3x and 1.6x sensors.  Nikon has a 17-55/2.8 DX
which is supposed to be very good.
Paul Rubin - 27 Jan 2006 05:29 GMT
> high end cameras have 1.3x and 1.6x sensors.

Typo: 1.3x and 1.0x.  And 1.3x is going away.
-hh - 27 Jan 2006 12:38 GMT
>  So, let's imagine making this lens:  You design a lens that not only has to
> perform a millimeter wider (which at those focal lengths is not entirely
[quoted text clipped - 6 lines]
>   Don't get me wrong, an EF-S 17-70 f/2.8 would be the bomb.  But from a
> financial standpoint, it's just not going to happen.

A possibility is that another way to successfully navigate through the
"law of physics and finances" box is to go to a higher aperature (f/4),
but compensate by throwing in the Image Stabilization (IS) hardware.

IS wouldn't initially seem to make sense for a wide angle, until you
consider that the cost of already-developed gyro's will be modest, and
the engineering techniques for using them is already known &
demonstrated.  As such, it very well may be cheaper to use IS to offset
the "glass" developmental & quality control costs for an f/2.8
aperature.

-hh
nikojorj_jaimepaslapub@yahoo.Fr - 27 Jan 2006 17:01 GMT
> >   Don't get me wrong, an EF-S 17-70 f/2.8 would be the bomb.  But from a
> > financial standpoint, it's just not going to happen.
>
> A possibility is that another way to successfully navigate through the
> "law of physics and finances" box is to go to a higher aperature (f/4),
> but compensate by throwing in the Image Stabilization (IS) hardware.

You mean, a lens that could be nicknamed EF-S 17-85 f/4-5.6 IS ;o) ?
(Note these free 15 mm bonus at the tele end).

For the moment, I find it rather safe that we, poor mortals, could take
an understandable glance in Canon's marketing ways : an EF-S line of
bodies and lenses for hobbyists, and a full-frame EF line for pros (or
fortune-favorised hobbyists).
I also do hope that will last a bit (at least longer than the *_film_*
APS cameras, pleaaaase!) - because I wouldn't want my 10-22 to become a
paperpress once my 300d will be in camera's heaven. Note to Canon's
marketing dept : that could easily eager me, perhaps even enough to buy
a Nikon.
-hh - 27 Jan 2006 18:41 GMT
> > A possibility is that another way to successfully navigate through the
> > "law of physics and finances" box is to go to a higher aperature (f/4),
> > but compensate by throwing in the Image Stabilization (IS) hardware.
>
> You mean, a lens that could be nicknamed EF-S 17-85 f/4-5.6 IS ;o) ?
> (Note these free 15 mm bonus at the tele end).

That's precisely the lens that I was thinking of, but didn't bother to
go to B&H to look up the exact specifics...

FWIW, from a philisophical standpoint, the EF-S 17-85 f/4-5.6 IS is an
functional duplicate to the 35mm EF 28-135mm IS.  As such, if this
focal length range meets the OP's definition for "walk around"
applications, then the product he wants effectively already exists,
albeit with the IS technology in lieu of an f/2.8 aperature.

Thus said, my personal interest in the EF-S 17-85 f/4-5.6 IS is fairly
low.  I have the EF 28-135 IS, and used it as a' walk-around' lens for
a couple of years and in general, I found that it was neither wide
enough nor long enough, so for me, it has become a garage queen.  Since
my interests tend to be either very wide or very long, for a
walkaround, I'd probably consider the EF-S 10-22mm f/3.5-4.5 USM...and
simply not worry that its not an f/2.8

> For the moment, I find it rather safe that we, poor mortals, could take
> an understandable glance in Canon's marketing ways...
> I also do hope that will last a bit...because I wouldn't want my 10-22
> to become a paperpress once my 300d will be in camera's heaven.
> Note to Canon's marketing dept : that could easily eager me, perhaps
> even enough to buy a Nikon.

This is a good point:  the interchangable lens attribute of SLR's leads
to sunk cost investments that tends to discourage consumers from
"jumping the fence" to competitor's products, and there will be a quite
tangible risk for Canon if/when they "retire" EF-S that those consumers
will see themselves as no longer having a sunk cost investment that
merits sticking with Canon - - they're free to shop amongst the entire
market, since the barrier to entry is equal.   Of course, if a
manufacturer were savvy, they would offer a "Trade-In" program to try
to encourage customer retention to their brand.

-hh
SMS - 27 Jan 2006 21:45 GMT
> This is a good point:  the interchangable lens attribute of SLR's leads
> to sunk cost investments that tends to discourage consumers from
[quoted text clipped - 5 lines]
> manufacturer were savvy, they would offer a "Trade-In" program to try
> to encourage customer retention to their brand.

I'm sure that the 1.6 crop factor will be around in the consumer space
for a long time. But full-frame is what "prosumers" are demanding, and
long term it'll be what Canon and Nikon offer in their prosumer models.
Check back in 10 years to see if this all comes to pass!
David Dyer-Bennet - 27 Jan 2006 22:01 GMT
> > This is a good point:  the interchangable lens attribute of SLR's leads
> > to sunk cost investments that tends to discourage consumers from
[quoted text clipped - 10 lines]
> long term it'll be what Canon and Nikon offer in their prosumer
> models. Check back in 10 years to see if this all comes to pass!

A few loudmouths are demanding it.  The rest of us are demanding our
f/2 zoom lenses instead (we want *some* of the benefits of a smaller
format, anyway!)
Signature

David Dyer-Bennet, <mailto:dd-b@dd-b.net>, <http://www.dd-b.net/dd-b/>
RKBA: <http://noguns-nomoney.com/> <http://www.dd-b.net/carry/>
Pics: <http://dd-b.lighthunters.net/> <http://www.dd-b.net/dd-b/SnapshotAlbum/>
Dragaera/Steven Brust: <http://dragaera.info/>

-hh - 27 Jan 2006 22:09 GMT
> I'm sure that the 1.6 crop factor will be around in the consumer space
> for a long time. But full-frame is what "prosumers" are demanding, and
> long term it'll be what Canon and Nikon offer in their prosumer models.

No dispute, per se.  My only twist would be to ask why the prosumers
are "demanding" Full Frame.  For example, it could be to get more
pixels, or it could be to get a good wide angle lens.  Understanding
what they actually want helps identify where to apply your product
development resources...CMOS vs Glass, etc.

> Check back in 10 years to see if this all comes to pass!

-hh
SMS - 27 Jan 2006 22:42 GMT
>> I'm sure that the 1.6 crop factor will be around in the consumer space
>> for a long time. But full-frame is what "prosumers" are demanding, and
>> long term it'll be what Canon and Nikon offer in their prosumer models.
>
> No dispute, per se.  My only twist would be to ask why the prosumers
> are "demanding" Full Frame.

It's not full frame, as much as it is higher resolution and lower noise.
The physics are such that larger pixels will always give you less noise,
assuming everything else is the same. But it's also related to the
expense of making good wide-angle lenses, which is much easier and less
costly with a larger sensor.

The Nikon D3 will probably be full frame, the only question is whether
it's a Nikon sensor, Sony sensor, or from someone else entirely.
Randall Ainsworth - 27 Jan 2006 03:04 GMT
> However, come on.  If Sigma can produce a 18-50mm F2.8 lens, then I don't
> see why Canon can't.

Because Canon doesn't produce shitty stuff like Sigma does.
thewurd@usfamily.net - 27 Jan 2006 03:19 GMT
BEEN DREAMING OF LIVING THE GOOD LIFE, ON YOUR TERMS?   YOU CAN DO
THIS!

You will now become part of a Mail Order business.  In this business
the
product is not solid or tangible, it's a service.  You are in the
business
of developing Mailing Lists.  You deal with information, and
information is
power.  Many large corporations are happy to pay vast amounts for
quality
lists.  However, the money made from the mailing lists is secondary to
the
income which is made from people like you and me asking to be included
on
such a list.

I used to work my butt off for someone else, but not any more.  Getting
on
to the internet changed everything.  I came across an article that said
you
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$6.00!  "Yeah, right, what a scam," is what I thought.  I was skeptical
to
say the least.  Still, I was curious.  I figured I could stand to lose
six
bucks, so I kept reading.

I'm pretty glad I did.  All you had to do was send $1.00 to the 6 names
at
the addresses listed in the article. Then, you placed your name and
address
at the bottom of the list at position #6, and posted the article to at
least
200 newsgroups.

I felt pretty silly after I'd sent the letters, and it took a bit of
time to
post the message to all those newsgroups.  To be honest, I pretty much
forget about the whole deal there and then.  "It's only six dollars. No
big
deal."

Was I in for a surprise. GUESS WHAT!  Within 7 days, I started getting
money
in the mail!  It was amazing!  I figured it would end, but it didn't.
The
money just kept rolling in.  I made about $18.00 in the first week.  By
the
end of the second week I'd made a total of over $980.  $10,328 in week
three, and it just went on and on.  This is now my fifth month and I'm
sitting on about $273,000.  Needless to say I quit my job a while back.
(I
used to work as a computer software manager)

It was certainly worth the $6.00 and change for the stamps.  I've spent
more
than that on the lottery, without a cent to show for it!!

Print a copy of this article, so you can refer back to it, or cut and
paste
it to Notepad or Word.  The process is very simple and is comprised of
3
easy steps.  If you're wondering why I'm letting you in on this, I'll
explain it to you shortly.  Bear with me.  This works.

STEP 1: Get 6 separate sheets of paper and write the following on each;

"PLEASE PUT ME ON YOUR MAILING LIST."

Get 6 US$1.00  bills (or the equivalent in your local currency) and
place a
dollar and a note in each of the 6 envelopes.  Fold the bill into the
paper
in order to prevent it from being seen, and possibly stolen.

You should now have 6 sealed envelopes, each containing a dollar and
the
note.  Don't forget to add your name and address.

Mail the 6 envelopes to the following addresses:

#1 R. Arambasic, 9 Ashmore St, Brunswick, VIC, Australia 3056
#2 S. Vouge, P.O. Box 5173, New York, N.Y. 10163, USA
#3 R. Dumancic, Mlinarska 22A, Zagreb, 10000, Croatia
#4 D. Lozina, 128 Nicholson St, Fitzroy, VIC, Australia 3065
#5 B. Spaleta, 39 Stewart Gve, Campbellfield, VIC, Australia 3061
#6 J. Wurdemann, P.O. Box 912, North Branch, MN. 55056, USA

STEP 2: Take name #1 off the list above, move the other names up (6
becomes
5, 5 becomes 4, etc...) and add YOUR name as number 6 on the list.
STEP 3: Post your amended article to at least 200 newsgroups. (There's
heaps
out there)  All you need is 200, but the more you post, the more money
you
make!

*********  HOW TO POST TO NEWSGROUPS (It's easy)  *********

1. You don't need to re-type this entire letter to do your own posting.
Cut
and paste this letter to your Notepad.  2. Remember to eliminate the #1

position, move everyone up a spot (re-number everyone else's
positions),
and add yourself as #6.   3. Save your new notepad file as a .txt file.
If
you want to do your  postings in different sittings, you'll always have
this
file to go back to.

***  NETSCAPE USERS  ***

Step 4. Within the Netscape program, go to the pull down window
entitled
'Window' select 'NetscapeNews'.  Then from the pull down menu
'Options',
select 'Show all Newsgroups'. After a few moments a list of all the
Newsgroups on your server will show up.  Click on any newsgroup you
desire.
>From within this newsgroup, click on the 'TO NEWS' button, which should
be
in the top left corner of the newsgroups page.  This will bring up a
message
box.

Step 5. Fill in the Subject. This will be the header that everyone sees
as
they scroll through the list of postings in a particular group.

Step 6. Highlight the entire contents of your .txt file, and cut and
paste
it the letter into the body of your posting.

Step 7. Hit the 'Send' Button in the upper left corner. You're done
with your
first post!  Congratulations...

***  INTERNET EXPLORER USERS  ***

Step 4. Go to newsgroups and select 'Post an Article'.
Step 5. Fill in the subject.
Step 6. Same as #6 above
Step 7. Hit the 'Post' button.

Alternatively, you can use a program like Forte Agent, which you can
find on
the Web.

THAT'S IT! All you have to do is jump to different newsgroups and post
away,
after you get the hang of it.  It takes about 30 seconds for each
newsgroup!

**REMEMBER, THE MORE NEWSGROUPS YOU POST TO, THE  MORE MONEY YOU'LL
MAKE!!
POST A  MINIMUM OF 200**

There you go!  You'll begin receiving money from around the world
within
days!  You may eventually even want to rent a P.O. Box due to the large

amount of mail you'll receive.  Should you wish to stay anonymous, you
may
use a pseudonym, as the postman will deliver it just the same.

**MAKE SURE ALL THE ADDRESSES ARE CORRECT.**

So, why am I letting you in on this.  Let me explain.

Out of 200 postings, say I receive only 5 replies.  I make $5.00 with
my
name at #6 on the letter.  Now, if each of the 5 individuals who sent
me
$1.00 make the minimum 200 postings, with my name at #5, and only 5
people
respond to each of the original 5, that's another $25.00 for me.  Now
those
25 each make 200 posts with my name at #4, and with 5 replies each, I
earn
an additional $125.00!  Those 125 turn around and post the minimum 200
with
my name at #3 and receive 5 replies each, I make $626.00 more! Get the
picture?  Five responses is actually a below norm response rate.  The
average is about 15 to 25.  For example, here's what you can expect to
earn from 15 responses:

at #6 $15.00   at #5 $225.00   at #4 $3,375.00   at #3 $50,625.00   at
#2
$759,375.00   at #1 $11,390,625.00

When your name is no longer on the list, you just take the latest
posting in
the newsgroups, and send out your $6.00 to names on the list, putting
your
name at number 6 again (which is what I'm doing), and start posting
again.

The thing to remember is that thousands of people all over the world
are
joining the internet and reading these articles everyday,  just as you
are
now!!

Can you afford $6.00?  I believe so. (I just didn't buy lunch that day)

People have said, "what if the plan is played out and no one sends you
the
money?  Doesn't matter.  There are tons of new honest users and new
honest
people who are joining the internet and newsgroups everyday, willing to
give
it a try?  Estimates are at 20,000 to 50,000 new users daily.

This will work for you. Be honest, be fair.  Remember, what goes around

comes around.
Rich - 27 Jan 2006 22:33 GMT
>> However, come on.  If Sigma can produce a 18-50mm F2.8 lens, then I don't
>> see why Canon can't.
>
>Because Canon doesn't produce shitty stuff like Sigma does.

http://www.dealtime.com/xPO-Canon_Canon_EF_S_18_55mm_f_3_5_5_6_USN
Skip M - 28 Jan 2006 00:50 GMT
>>> However, come on.  If Sigma can produce a 18-50mm F2.8 lens, then I
>>> don't
[quoted text clipped - 3 lines]
>
> http://www.dealtime.com/xPO-Canon_Canon_EF_S_18_55mm_f_3_5_5_6_USN

Gee, that's definitive.  One guy gave it 4 stars, one guy gave it one star,
because it's slow focusing and has CA.  Wow, two reviews, and on that you
base a comment?

Signature

Skip Middleton
http://www.shadowcatcherimagery.com

Rich - 28 Jan 2006 22:28 GMT
>>>> However, come on.  If Sigma can produce a 18-50mm F2.8 lens, then I
>>>> don't
[quoted text clipped - 7 lines]
>because it's slow focusing and has CA.  Wow, two reviews, and on that you
>base a comment?

No, I base it on many reviews online and in magazines that have said
it's basically mediocre.  Anyone who gives it "4 stars" is an idiot.
-Rich
Skip M - 28 Jan 2006 23:33 GMT
>>>>> However, come on.  If Sigma can produce a 18-50mm F2.8 lens, then I
>>>>> don't
[quoted text clipped - 12 lines]
> it's basically mediocre.  Anyone who gives it "4 stars" is an idiot.
> -Rich

Anyone who gives in 1 star is just as much of an idiot.  Sort of like the
guy who cites a review page that consists of two reviews...

Signature

Skip Middleton
http://www.shadowcatcherimagery.com

U-Know-Who - 29 Jan 2006 02:03 GMT
>>>>>> However, come on.  If Sigma can produce a 18-50mm F2.8 lens, then I
>>>>>> don't
[quoted text clipped - 15 lines]
> Anyone who gives in 1 star is just as much of an idiot.  Sort of like the
> guy who cites a review page that consists of two reviews...

I own the non-usm version, and it's not as bad as some would have you think.
Sure, it feels cheap, but then again, it is cheap. One use I have found for
it that it excels at, is macro, with a *cheap* Opteka macro converter
screwed on the front. Ever seen the color of nail polish ants have on their
feet?
Steve - 29 Jan 2006 23:01 GMT
It doesn't get too badly rated here.  Based on 54 Reviews.

http://tinyurl.com/b6xaw

> >> However, come on.  If Sigma can produce a 18-50mm F2.8 lens, then I don't
> >> see why Canon can't.
> >
> >Because Canon doesn't produce shitty stuff like Sigma does.
>
> http://www.dealtime.com/xPO-Canon_Canon_EF_S_18_55mm_f_3_5_5_6_USN
SMS - 26 Jan 2006 21:33 GMT
> Come on Canon, we want a decent walk-a-round lens for non-full frame DSLR's!
> Ideally a 17-70 2.8L.

Unless it's a lens primarily intended for the full-frame models, it's
unlikely to happen. What's the market for a lens that costs as much as,
or more, that the camera body, for the two 1.6 crop factor D-SLRs that
Canon makes.

Let's face it, the world is moving to full frame, and we'll likely see
full frame break the $2000 price point later this year. Nikon will
likely introduce a full-frame model by the end of 2006 as well, as the
Nikon faithful are demanding it.
Steve - 26 Jan 2006 21:44 GMT
Are you saying that Canon 'stitched-up' their consumers with EF-S?

> Unless it's a lens primarily intended for the full-frame models, it's
> unlikely to happen. What's the market for a lens that costs as much as,
[quoted text clipped - 5 lines]
> likely introduce a full-frame model by the end of 2006 as well, as the
> Nikon faithful are demanding it.
Paul Rubin - 26 Jan 2006 21:51 GMT
> Are you saying that Canon 'stitched-up' their consumers with EF-S?

The low end Canons will probably stay APS-C (1.6x) sized for a while.
Canon uses three sensor sizes (1.6x, 1.3x, and 1.0x) in its DSLR's.
Making a high end lens in the 1.6x format doesn't seem that clever.

Nikon seems to be sticking to 1.6x and makes a 17-55/2.8 for it.
I actually can't think of any serious full frame lenses that Nikon
has introduced recently (post-2004), though maybe there are some.
Steve - 26 Jan 2006 22:13 GMT
Depends on how you look at it.

Canon are asking themselves ... Will we sell more 'L' lenses if we do this?
Will we sell more bodies if we do this?  Marketing and sales departments
decide, not the technical people, who are the actual people who actually
know what they are doing.

How about I buy the only lens that actually suits my needs?  Let's face it,
I would love to buy Canon, but they do not have anything I want to buy.
Trust me, I am not just one person winging.

> Making a high end lens in the 1.6x format doesn't seem that clever.
Paul Rubin - 26 Jan 2006 22:18 GMT
> Canon are asking themselves ... Will we sell more 'L' lenses if we
> do this?  Will we sell more bodies if we do this?  Marketing and
> sales departments decide, not the technical people, who are the
> actual people who actually know what they are doing.

Yeah, sooner or later the lenses on Canon point-and-shoots will be
designated "L" and that will certainly increase sales numbers.
However, we're talking about a high speed zoom which is necessarily
quite expensive.

I don't think Canon makes any professional DSLR's (EOS-1D series)
right now with 1.6x sensors.  The EOS-1D series is all 1.0x or 1.3x
(is that correct?).  The amateur series are either 1.0x (5d) or 1.6x
(20d/350d).  It won't surprise me if the 20d replacement is 1.3x.  I
suspect that most current 20d owners would buy a 5d if they could
afford it.  That leaves the 350d and its successors.  Not so many of
those cameras get fitted with high end lenses.
Skip M - 27 Jan 2006 05:57 GMT
>> Canon are asking themselves ... Will we sell more 'L' lenses if we
>> do this?  Will we sell more bodies if we do this?  Marketing and
[quoted text clipped - 5 lines]
> However, we're talking about a high speed zoom which is necessarily
> quite expensive.

Actually, I think one of Canon's compacts (S1?) had a lens designated "L."
For that designation, it only needs one element made of exotic materials,
like flourite or a super ultra low dispersion glass.

> I don't think Canon makes any professional DSLR's (EOS-1D series)
> right now with 1.6x sensors.  The EOS-1D series is all 1.0x or 1.3x
[quoted text clipped - 3 lines]
> afford it.  That leaves the 350d and its successors.  Not so many of
> those cameras get fitted with high end lenses.

It would surprise the heck out of me, and many others, if the 20D successor
was a 1.3x crop.  For one thing, that would negate the use of EF-S lenses,
limiting them to one camera line, which would make no sense, either for
marketing or R&D.   And there have been broad hints dropped that the 1.3x
sensor is on life support.  Expect the 20D replacement to be between 10 and
12 mp and a 1.6x crop.
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Paul Rubin - 27 Jan 2006 05:59 GMT
> It would surprise the heck out of me, and many others, if the 20D
> successor was a 1.3x crop.  For one thing, that would negate the use
> of EF-S lenses,

Are you sure that EF-S lenses work on the 20D as it is?

> limiting them to one camera line,

I thought they were already limited to the low end models

>  which would make
> no sense, either for marketing or R&D.  And there have been broad
> hints dropped that the 1.3x sensor is on life support.

OK, makes sense.

> Expect the 20D replacement to be between 10 and 12 mp and a 1.6x crop.

Yeah, either that or 1.0x.
Skip M - 27 Jan 2006 06:09 GMT
>> It would surprise the heck out of me, and many others, if the 20D
>> successor was a 1.3x crop.  For one thing, that would negate the use
>> of EF-S lenses,
>
> Are you sure that EF-S lenses work on the 20D as it is?

Positive.  We have an 18-55 EF-S that came in the 20D kit.

>> limiting them to one camera line,
>
> I thought they were already limited to the low end models

350D/RebelXT and 20D.

>>  which would make
>> no sense, either for marketing or R&D.  And there have been broad
[quoted text clipped - 5 lines]
>
> Yeah, either that or 1.0x.

Not going to be full frame, too expensive to produce, so it would either be
too close to the 5D's price, or they'd have to cut quality of the body even
further, so that you'd have a full frame 350D.  And you'd be back to
producing a separate lens line for one line of cameras.  Didn't work with
APS film, won't work with APS sized sensors.

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Steve Wolfe - 27 Jan 2006 07:51 GMT
> Actually, I think one of Canon's compacts (S1?) had a lens designated "L."
> For that designation, it only needs one element made of exotic materials,
> like flourite or a super ultra low dispersion glass.

 It's one fluorite *or* either three or four UD elements, if I recall.

steve
Philip Homburg - 26 Jan 2006 22:20 GMT
>> Are you saying that Canon 'stitched-up' their consumers with EF-S?
>
[quoted text clipped - 5 lines]
>I actually can't think of any serious full frame lenses that Nikon
>has introduced recently (post-2004), though maybe there are some.

The first one I found, is the AF-S VR Nikkor 300mm f/2.8G IF-ED.
According to Nikon, this lens is released in 2005.

Of course, it doesn't make any sense to make tele lenses in DX format.

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Paul Rubin - 26 Jan 2006 22:36 GMT
> The first one I found, is the AF-S VR Nikkor 300mm f/2.8G IF-ED.
> According to Nikon, this lens is released in 2005.

Cool, thanks.

> Of course, it doesn't make any sense to make tele lenses in DX format.

True, let's modify the condition to just include wideangles.  But
Nikon isn't making that many new lenses, so recent non-DX wideangles
doesn't really tell us much.
Philip Homburg - 26 Jan 2006 23:02 GMT
>True, let's modify the condition to just include wideangles.  But
>Nikon isn't making that many new lenses, so recent non-DX wideangles
>doesn't really tell us much.

The big question is whether the 17-35 is upto full frame. Somebody with
a full frame Canon (and the right adapter) should do a shoot out.
The Kodak DCS Pro 14n is other way of testing.

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That was it. Done. The faulty Monk was turned out into the desert where it
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Paul Rubin - 26 Jan 2006 23:13 GMT
> The big question is whether the 17-35 is upto full frame. Somebody with
> a full frame Canon (and the right adapter) should do a shoot out.
> The Kodak DCS Pro 14n is other way of testing.

The 17-35 has always been claimed to be a full frame lens.  Do you
mean the 17-55?  A Canon adapter or Pro 14n is not needed for a test.
If someone wants to send me one of these lenses, I can go buy some
film and test it on my F3 ;-).

FWIW, Bjorn Rorslett tested the 12-24 DX G on an F5 and found that it
covers the full 35mm frame at 18mm and above, but vignettes below that.
Philip Homburg - 27 Jan 2006 09:41 GMT
>> The big question is whether the 17-35 is upto full frame. Somebody with
>> a full frame Canon (and the right adapter) should do a shoot out.
[quoted text clipped - 4 lines]
>If someone wants to send me one of these lenses, I can go buy some
>film and test it on my F3 ;-).

The problem is that full frame 35mm DSLRs are supposed to provide medium
format quality. And F3 is not going to deliver that.

Another problem is that (according to Bjorn Rorslett) CA becomes
much more visible in high resolution sensors than on film. It is possible
that he simply enlarges digital files more than film, but digital simply
tends to be enlarged more than film.

If the 17-35 is good enough, say, at least as good as the 12-24, then I
think it would unlikely for Nikon to come with new full frame lenses in
that range before any full frame camera is introduced.

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That was it. Done. The faulty Monk was turned out into the desert where it
could believe what it liked, including the idea that it had been hard done
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Paul Rubin - 27 Jan 2006 18:18 GMT
> The problem is that full frame 35mm DSLRs are supposed to provide medium
> format quality. And F3 is not going to deliver that.

Well, DSLR's beat film at the same ISO, but there are still some very
low speed films around, especially monochrome.  E.g. I think Technical
Pan is out of production but can still be obtained from various
sources.  I don't know what the color equivalent would be.  There is
probably even still some frozen K25 around though.

> If the 17-35 is good enough, say, at least as good as the 12-24, then I
> think it would unlikely for Nikon to come with new full frame lenses in
> that range before any full frame camera is introduced.

That leaves them missing (among other things) a bunch of high speed
primes, fisheyes, etc. compared to Canon EOS and compared to Nikon's
own now-mostly-discontinued MF lens line.
Philip Homburg - 27 Jan 2006 19:20 GMT
>Well, DSLR's beat film at the same ISO, but there are still some very
>low speed films around, especially monochrome.  E.g. I think Technical
>Pan is out of production but can still be obtained from various
>sources.  I don't know what the color equivalent would be.  There is
>probably even still some frozen K25 around though.

I'm not sure that film responds the same way as a sensor. Testing with a
high-res sensor is the best approach.

>That leaves them missing (among other things) a bunch of high speed
>primes, fisheyes, etc. compared to Canon EOS and compared to Nikon's
>own now-mostly-discontinued MF lens line.

Nikon still has a 16/2.8 AF fisheye. Fast/wide includes 14/2.8 AF,
28/1.4 AF, 35/2.0 AF.

And, according to Nikon UK's press release, the 35/1.4 also remains
available.

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That was it. Done. The faulty Monk was turned out into the desert where it
could believe what it liked, including the idea that it had been hard done
by. It was allowed to keep its horse, since horses were so cheap to make.
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Paul Rubin - 27 Jan 2006 19:51 GMT
> I'm not sure that film responds the same way as a sensor. Testing with a
> high-res sensor is the best approach.

Fwiw, Thom Hogan did try the 17-55 that we were discussing on a film
body (http://www.bythom.com/1755lens.htm):

   Works on 35mm. Yep, you can use it as an 26-55mm zoom on your full
   frame or 35mm bodies, though almost any filter will still vignette at
   28mm.  

> Nikon still has a 16/2.8 AF fisheye. Fast/wide includes 14/2.8 AF,
> 28/1.4 AF, 35/2.0 AF.
>
> And, according to Nikon UK's press release, the 35/1.4 also remains
> available.

Yeah, the 24/2 and 28/2 are gone.  There will probably be no answer to
the Canon 24/1.4 or the (I guess long gone) Olympus 21/2.  I have an
28/2 (AI converted, cost $150 in beat-up condition but works fine)
which was one of my most-used lenses.  But the 17-35/2.8 is supposed
to be terrific, so I guess it makes up for a lot.
David Dyer-Bennet - 27 Jan 2006 20:09 GMT
> > The problem is that full frame 35mm DSLRs are supposed to provide medium
> > format quality. And F3 is not going to deliver that.
[quoted text clipped - 4 lines]
> sources.  I don't know what the color equivalent would be.  There is
> probably even still some frozen K25 around though.

I figure Ektar 25.  The bastards discontinued it stealthily enough
that I didn't know in time to stock up.
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-hh - 27 Jan 2006 22:05 GMT
> > Well, DSLR's beat film at the same ISO, but there are still some very
> > low speed films around, especially monochrome.  E.g. I think Technical
[quoted text clipped - 4 lines]
> I figure Ektar 25.  The bastards discontinued it stealthily enough
> that I didn't know in time to stock up.

First up was the rename of the Ektar line to to "Royal Gold", and
you're right -  from there, the ISO 25 variant quietly faded away.

(taking peek in fridge)

Looks like I have 16 rolls of it still left.

-hh
Skip M - 28 Jan 2006 00:11 GMT
>> > The problem is that full frame 35mm DSLRs are supposed to provide
>> > medium
[quoted text clipped - 8 lines]
> I figure Ektar 25.  The bastards discontinued it stealthily enough
> that I didn't know in time to stock up.

Ektar 25, my personal favorite.  They discontinued it by stages.  First they
changed it to Royal Gold 25, then, when no one bought it because they didn't
know about it, they d'c'ed it...

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Bruce Hoult - 31 Jan 2006 05:48 GMT
> FWIW, Bjorn Rorslett tested the 12-24 DX G on an F5 and found that it
> covers the full 35mm frame at 18mm and above, but vignettes below that.

.. and produces exactly the same image at 18mm on film as it does at
12mm on a 1.5 crop digital.

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Steve Wolfe - 27 Jan 2006 04:06 GMT
> > Are you saying that Canon 'stitched-up' their consumers with EF-S?
>
> The low end Canons will probably stay APS-C (1.6x) sized for a while.

 They've publicly said that APS-C is here to stay, and it makes sense to do
so in the lower-end cameras.  Even if full-frame becomes relatively
inexpensive, APS-C is cheaper, allowing them to make a less expensive
entry-level dSLR, and create a "distinguishing feature" to make people think
that they need to buy a more expensive camera, even if they don't really
need full-frame for their applications.

> Canon uses three sensor sizes (1.6x, 1.3x, and 1.0x) in its DSLR's.
> Making a high end lens in the 1.6x format doesn't seem that clever.

 I believe that they've also said that 1.3x won't be done anymore - it'll
be full-frame or EF-S (1.6x).

steve
Skip M - 27 Jan 2006 05:52 GMT
>> Are you saying that Canon 'stitched-up' their consumers with EF-S?
>
[quoted text clipped - 5 lines]
> I actually can't think of any serious full frame lenses that Nikon
> has introduced recently (post-2004), though maybe there are some.

Well, the 200-400 f4 VR may qualify as a full frame lens, I think.  And
doesn't the 18-200 work on other-than-digital-format?

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Paul Rubin - 27 Jan 2006 05:56 GMT
> Well, the 200-400 f4 VR may qualify as a full frame lens, I think.  And
> doesn't the 18-200 work on other-than-digital-format?

The 18-200 is a DX.  200-400 VR is pre-2005, I think.  Philip Homburg
pointed out the 300/2.8 VR and also mentioned this isn't such an issue
for telephotos.  So we're looking for full frame Nikon wideangles
(including zooms) introduced in 2005 or later, basically after Nikon
quit making film cameras (except the F6).
Skip M - 27 Jan 2006 06:10 GMT
>> Well, the 200-400 f4 VR may qualify as a full frame lens, I think.  And
>> doesn't the 18-200 work on other-than-digital-format?
[quoted text clipped - 4 lines]
> (including zooms) introduced in 2005 or later, basically after Nikon
> quit making film cameras (except the F6).

200-400 just came out this past year, so, it is pre 2006, certainly "post
2004."

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Paul Rubin - 27 Jan 2006 06:30 GMT
> 200-400 just came out this past year, so, it is pre 2006, certainly "post
> 2004."

OK, but not a wideangle.
Skip M - 28 Jan 2006 00:53 GMT
>> 200-400 just came out this past year, so, it is pre 2006, certainly "post
>> 2004."
>
> OK, but not a wideangle.

No, it's not a wideangle.  Didn't know that was the qualifier.  But it does
show that Nikon is either dedicated to coverage on film or a full 35mm sized
sensor.

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Philip Homburg - 28 Jan 2006 09:19 GMT
>No, it's not a wideangle.  Didn't know that was the qualifier.  But it does
>show that Nikon is either dedicated to coverage on film or a full 35mm sized
>sensor.

No, you get full frame coverage more or less for free with longer lenses.

However, Nikon's MTF graph of the 200-400 is a bit odd at the wide (200)
end. If you compare it to the 180/2.8, the 200-400 does seem to be
optimized for DX. (At 400, the specs are great, even for full frame).

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That was it. Done. The faulty Monk was turned out into the desert where it
could believe what it liked, including the idea that it had been hard done
by. It was allowed to keep its horse, since horses were so cheap to make.
    -- Douglas Adams in Dirk Gently's Holistic Detective Agency

Skip M - 28 Jan 2006 13:55 GMT
>>No, it's not a wideangle.  Didn't know that was the qualifier.  But it
>>does
[quoted text clipped - 7 lines]
> end. If you compare it to the 180/2.8, the 200-400 does seem to be
> optimized for DX. (At 400, the specs are great, even for full frame).

Ah, ok, then Paul has a point, no matter when the lens was released.

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SMS - 26 Jan 2006 23:18 GMT
> Are you saying that Canon 'stitched-up' their consumers with EF-S?

No. The EF-s lenses are fine for what they are, and some of them are
very good, up to the level of L glass (i.e. the 10-22 EF-s. But as
full-frame moves from pro down to prosumer, there isn't a reason for
Canon to build very high end EF-s lenses for the tiny market of amateurs
that would spend that much money on a lens.
Steve Wolfe - 27 Jan 2006 04:13 GMT
> > Are you saying that Canon 'stitched-up' their consumers with EF-S?
>
> No. The EF-s lenses are fine for what they are, and some of them are
> very good, up to the level of L glass (i.e. the 10-22 EF-s.

 "One" doesn't constitute "some". :-)  The 18-55 clearly isn't up to "L"
standards, and while the 17-85 is a nice lens, it's still not there.  The
60mm macro is a very fine lens, but I still haven't heard anyone claim that
it's up to the level of any of the "L" series primes.

 I could see some logic in keeping a high-end APS-C camera for
professionals that need extra-long lenses, but realistically, because they
are professionals (with money to spend), Canon would probably make more
money by selling them a full-frame body and making them buy longer (more
expensive) lenses.  The fact that a 200mm f/2.8 does the same job on a 20D
as a 300mm f/2.8 on a full-frame body - at 1/6th the price - doesn't do much
for Canon's pocketbooks. ;-)

steve
Keith - 26 Jan 2006 22:15 GMT
> Let's face it, the world is moving to full frame

Your world perhapps, not anyone elses as far as I can see from where I'm
sitting ;-)
Steve Wolfe - 27 Jan 2006 04:15 GMT
> > Let's face it, the world is moving to full frame
>
> Your world perhapps, not anyone elses as far as I can see from where I'm
> sitting ;-)

 Then you must use Nikon!

 Canon has stopped making 1.3x, moving to full-frame for their top-end
cameras, and since the advent of the 5D, it appears that they're moving it
down the line as well.  Only their lower models will remain 1.6x.

steve
SMS - 27 Jan 2006 04:28 GMT
>> Let's face it, the world is moving to full frame
>
> Your world perhapps, not anyone elses as far as I can see from where I'm
> sitting ;-)

Nikon is anxious to do a full frame professional model, but they are
waiting for a decent full-frame sensor to be available. At this point in
time, only Canon has low-noise, high-resolution, full-frame sensors and
they don't appear to be interested in selling sensors to other
manufacturers.
Paul Rubin - 27 Jan 2006 04:42 GMT
> Nikon is anxious to do a full frame professional model, but they are
> waiting for a decent full-frame sensor to be available. At this point
> in time, only Canon has low-noise, high-resolution, full-frame sensors
> and they don't appear to be interested in selling sensors to other
> manufacturers.

*cough* Dalsa *cough* Hasselblad *cough* etc.
David J. Littleboy - 27 Jan 2006 05:11 GMT
>> Nikon is anxious to do a full frame professional model, but they are
>> waiting for a decent full-frame sensor to be available. At this point
[quoted text clipped - 3 lines]
>
> *cough* Dalsa *cough* Hasselblad *cough* etc.

The MF back chips are quite poor compared to Canon in the noise/dynamic
range areas.

David J. Littleboy
Tokyo, Japan
SMS - 27 Jan 2006 06:00 GMT
>>> Nikon is anxious to do a full frame professional model, but they are
>>> waiting for a decent full-frame sensor to be available. At this point
[quoted text clipped - 8 lines]
> David J. Littleboy
> Tokyo, Japan

This is true. A larger sensor doesn't always mean better noise
characteristics. Fill-Factory/Kodak proved this a long time ago.
David J. Littleboy - 27 Jan 2006 07:08 GMT
>>>> Nikon is anxious to do a full frame professional model, but they are
>>>> waiting for a decent full-frame sensor to be available. At this point
[quoted text clipped - 8 lines]
> This is true. A larger sensor doesn't always mean better noise
> characteristics. Fill-Factory/Kodak proved this a long time ago.

It does if it's the same technology.

The problem with the MF backs, is that those guys just don't have the R&D
and the multiple generations of mfg experience Canon and Sony do. Every new
chip Sony comes out with has this and that tweaked by 2 or 3 dB, and you do
that 10 times, and you are getting really clean signals. And you figure out
how to make microlenses that really work.

David J. Littleboy
Tokyo, Japan
Mark B. - 26 Jan 2006 22:41 GMT
> Come on Canon, we want a decent walk-a-round lens for non-full frame
> DSLR's!
[quoted text clipped - 5 lines]
> My hand is staying in my pocket, although I have just been informed that
> Sigma is producing a 18-50 EX f/2.8.  Sounds tempting.

I have the Sigma 18-50, it's a good lens on my 10D.  Sigma also just
introduced a 17-70 f/2.8-4.5, but it's not an EX so I'd wait for reviews.
Their non-EX lenses don't have a great reputation.

Mark
David J. Littleboy - 27 Jan 2006 02:26 GMT
> Come on Canon, we want a decent walk-a-round lens for non-full frame
> DSLR's!
> Ideally a 17-70 2.8L.

You're being a tad greedy here: that's a 4x zoom range, equivalent to a
28-112. The 24-105/4.0 is heavy and expensive and has troubles at 24mm. I'd
guess that your 17-70/2.8 is probably possible, but at a very similar weight
and price.

Canon probably figures that folks shelling out US$3000 for a camera (5D) can
afford another $1200 or $1500 for a lens, but that folks spending $800 or
$1200 for the body will probably balk at that price.

We _should_ be seeing more "more interesting" lenses for APS-C, since (as
others have pointed out) it's easier to make more heroic (faster, wider zoom
ranges, with better lp/mm performance) lenses for smaller formats.

> The only option at the moment is a slow lens.  Or alternatively a 16-35
> F2.8L or a 24-70 2.8L.
>
> My hand is staying in my pocket, although I have just been informed that
> Sigma is producing a 18-50 EX f/2.8.  Sounds tempting.

http://www.sigma-photo.co.jp/lens/digital/18_50_28.htm

That's a nice looking lens: compact, light, f/2.8, focuses close (1:5), uses
67mm filters as opposed to the 77mm of the 24-106.. But a tad pricey. Read
the reviews carefully.

FWIW, the Tamron 28-75/2.8 is very nice on a 1.6x camera; cheap, sharp,
light, fast. AF is a tad funky, though, and it ain't "L" build quality. It
also works well on FF.

David J. Littleboy
Tokyo, Japan
Steve - 27 Jan 2006 19:52 GMT
Hello David

True, I am being greedy.  However a 18-50 would be an acceptable range,
although not perfect.

I currently have a 17-85, which I have no real problems with as a
walk-a-round lens, however the main downfall is the aperture limitations.
So, I am in a dilemma, do I spend money on a 24-70 2.8L, which doesn't
really give me what I really want at the wide scale on a 20D?  Or a 16-35
F2.8/17-40 F4, which gives me the wide end, but not the longer end?  Neither
really give me what I want from a walk-a-round lens, despite the financial
outlay.  The weight of the lens doesn't bother me.

The other option is a full frame body, but I would prefer to spend money on
lenses than the body.  The reason for this is because as digital photography
is still in it's infancy really (just like PC's were), body's are soon out
of date due to quick technology advancements..  However, a decent lens
doesn't really go out of date and you get many years of use from it.  I have
looked at the 5D, but not really what I am after.  Loss of focal length,
3fps, etc.  1D Mk-II would be fantastic, but way out of budget.

> > Come on Canon, we want a decent walk-a-round lens for non-full frame
> > DSLR's!
[quoted text clipped - 31 lines]
> David J. Littleboy
> Tokyo, Japan
Steve - 27 Jan 2006 20:10 GMT
Just for your info, I would like a longer range for flexibility/convenience,
but also because there are many places where you don't want to pull out a
white lens.

> Hello David
>
[quoted text clipped - 57 lines]
> > David J. Littleboy
> > Tokyo, Japan
Mardon - 27 Jan 2006 14:35 GMT
"Steve" <me@privacy.net> wrote:

> Come on Canon, we want a decent walk-a-round lens for non-full
> frame DSLR's! Ideally a 17-70 2.8L.
> The only option at the moment is a slow lens.  Or alternatively
> a 16-35 F2.8L or a 24-70 2.8L.
> My hand is staying in my pocket...

I have a 20D and use the 16-35 f/2.8L as a walk-around lens.  Before
getting it, I thought it would be too wide but that has rarely been a
problem.  I sometimes take a 50mm f/1.4 prime along in my pocket but
I've only actually used it on a couple of occasions. The 16-35 2.8L
is a great lenses.  I highly recommend it. If you give it a try, I
think you may find it so good that you won't even miss the longer
range.
Steve - 27 Jan 2006 20:04 GMT
Yeah, I also have the 50mm F1.4, which I love.  A fantastic lens.

The 16-35 2.8L has crossed my mind.  However, at those focal lengths, so
does the 17-40L F4.  So, you don't miss the longer range at all?

> I have a 20D and use the 16-35 f/2.8L as a walk-around lens.  Before
> getting it, I thought it would be too wide but that has rarely been a
[quoted text clipped - 3 lines]
> think you may find it so good that you won't even miss the longer
> range.
Paul Rubin - 27 Jan 2006 20:17 GMT
> The 16-35 2.8L has crossed my mind.  However, at those focal lengths, so
> does the 17-40L F4.  So, you don't miss the longer range at all?

Unless you constantly carry every type of lens from fisheye to super
tele, there will always be some types of shots you won't get.  But you
can do fine with just a wideangle, even a non-zoom.  My favorite
walkaround lens for 35mm full frame was a 24/2.8, whose angle of
coverage was very similar to a normal visual field of view when you're
not using a camera (not counting peripheral vision).  The 1.6x DSLR
equivalent would be around 15mm.  For a more general purpose 35mm was
also a popular length, corresponding to 22mm at 1.6x.
Mardon - 27 Jan 2006 20:24 GMT
"Steve" <me@privacy.net> wrote:

> Yeah, I also have the 50mm F1.4, which I love.  A fantastic
> lens.
>
> The 16-35 2.8L has crossed my mind.  However, at those focal
> lengths, so does the 17-40L F4.  So, you don't miss the longer
> range at all?

If you think that the 50mm f/1.4 is a great lens (and I agree) I
think you'd no doubt like the 16-35 f/2.8 even more.  With the 50mm
as a 'backup' I do not miss the 35 to 49 and 51 to 70mm ranges at
all.  IMHO, it is far more valuable to have the extra 1mm on the wide
end and the larger f/2.8 apature.  BTW, for my wide lens, I have the
Canon 70-200mm f/2.8L IS USM with a 1.4x Converter.  The 70-200 is
another fantastic lens.  I wish my photography capabilities were up
to the quality of my equipment.  I have a sample of some photos taken
with these lenses on my website.  I shot everything on this page
since Christmas.  The photo labeled "Cold & Lonely" is the only one
taken with the 50mm.  Everything else is either the 16-35 or the 200.  
See: http://www.JustUs.ca/photos/ 
Steve - 27 Jan 2006 20:51 GMT
How do you find it for depth of field when shooting people?  Do you need to
get too close to them?  This is one of the reasons for wanting a longer
focal length, big aperture zoom.

One of the reasons I really love the 50mm 1.4 is that I can shoot with a
shallow depth of field and single people out in a group, but I don't have to
get too close (intrude their personal space).  Further more, they feel very
un-intimidated because they see a small lens on the camera and don't realise
that you are actually focusing on them.  It is also great in fairly low
light without the need for flash, combined with easy white balance
adjustment it is great.  Of course the limiting factor is also that 'foot
zoom' is not always possible with a prime, hence why I would like a zoom.

Yes, I agree, the Canon 70-200mm f/2.8L IS USM with a 1.4x Converter if a
lovely combination with the 20D.  I would imagine to Canon's surprise that
their sales have dramatically increased within the last few years with
people buying this combination on their 1.6 cropped bodies.  300 F4 IS is
also a nice addition to this combination, if you also shoot telephoto as
well.

> If you think that the 50mm f/1.4 is a great lens (and I agree) I
> think you'd no doubt like the 16-35 f/2.8 even more.  With the 50mm
[quoted text clipped - 8 lines]
> taken with the 50mm.  Everything else is either the 16-35 or the 200.
> See: http://www.JustUs.ca/photos/
dtong22@yahoo.com - 28 Jan 2006 00:23 GMT
>Come on Canon, we want a decent walk-a-round lens for non-full frame >DSLR's!
>Ideally a 17-70 2.8L.

i can see why canon is doing that
that is to make sure that you move to high cost bracket
i am in the camp of pentax dslr
even with the lowly DL, we can use majority of the prime lens dating
back to the 70s
right now i am using a (full frame capable)  50mm1.4 which is my
walk-around lens

daniel
Skip M - 28 Jan 2006 01:10 GMT
> >Come on Canon, we want a decent walk-a-round lens for non-full frame
> > >DSLR's!
[quoted text clipped - 9 lines]
>
> daniel

You can use any lens made after 1987 on any Canon digital SLR, including all
of their fixed focal length lenses.  Which, of course, means the 50mm f1.8
will work just as well on his 350D as the your 50mm f1.4 will work on your
camera.
Does Pentax make a 17-70 f2.8?  No?  I didn't think so...  Do they make a
17-85 f4-5.6 IS?  Didn't think that, either...

Signature

Skip Middleton
http://www.shadowcatcherimagery.com

dtong22@yahoo.com - 28 Jan 2006 03:36 GMT
> Does Pentax make a 17-70 f2.8?  No?  I didn't think so...  Do they make a
>17-85 f4-5.6 IS?  Didn't think that, either...

skip

we are not talking about canon compared with pentax

i did not bash canon either which have great camera and lens

but it appears that certain type of lens have limitation because of
various crop factors i believe

don't get me wrong

daniel
Skip M - 28 Jan 2006 13:58 GMT
>> Does Pentax make a 17-70 f2.8?  No?  I didn't think so...  Do they make a
>>17-85 f4-5.6 IS?  Didn't think that, either...
[quoted text clipped - 11 lines]
>
> daniel

The lenses perform the same, whether Pentax or Canon, on crop cameras.  If
the lenses are designed for the crop, they are optimized for that.  If they
are older film based designs, then they are not.  The implication of what
you said was that older Pentax lenses worked better on the Pentax digital
SLRs than the older Canons do on Canon's DSLRs.  This is not so.

Signature

Skip Middleton
http://www.shadowcatcherimagery.com

dtong22@yahoo.com - 28 Jan 2006 00:35 GMT
>Come on Canon, we want a decent walk-a-round lens for non-full frame >DSLR's! Ideally a 17-70 2.8L.

>The only option at the moment is a slow lens.  Or alternatively a 16-35
>F2.8L or a 24-70 2.8L.

Talking about lowly Pentax the market share of which is nowhere near
that of Canon/Nikon,   we are used to cheapie prime.  A brand new 50mm
f/2 is around $60.  a 50mm 1.2 is really pricey but a 50mm 1.4 is just
around $200 brand new.  I can tell you there are really prime not just
in name.

Daniel
Skip M - 28 Jan 2006 01:11 GMT
> >Come on Canon, we want a decent walk-a-round lens for non-full frame
> > >DSLR's! Ideally a 17-70 2.8L.
[quoted text clipped - 9 lines]
>
> Daniel

A brand new Canon 50mm f1.8 is about $80, the 1.4 is about $225.

Signature

Skip Middleton
http://www.shadowcatcherimagery.com

dtong22@yahoo.com - 28 Jan 2006 03:00 GMT
skip,
the thread started off  with the lack of prime lens for non-full frame
dslr
would the prime lens you mentioned fit those?
daniel
Skip M - 28 Jan 2006 14:03 GMT
> skip,
> the thread started off  with the lack of prime lens for non-full frame
> dslr
> would the prime lens you mentioned fit those?
> daniel

As stated earlier, yes.  Any Canon EF mount lens will mount on any Canon EOS
camera, and fully function, whether that camera is film, 35mm sensor digital
or a 1.6x crop digital.  Going backwards with the EF-S mount is probably
what you are thinking about.  The more recently designed EF-S mount is
designed to fit the crop sensor cameras, but only mounts on the RebelD,
RebelXT and 20D.  The mirrors on the full frame 5D and 1 series will,
reportedly, hit the rear of the lens, but the lens can be modified to fit
the 10D (also a 1.6x crop)

Signature

Skip Middleton
http://www.shadowcatcherimagery.com

Keith Baird - 31 Jan 2006 15:03 GMT
> Come on Canon, we want a decent walk-a-round lens for non-full frame DSLR's!
> Ideally a 17-70 2.8L.

Well,

EF-S 17-85mm f/4-5.6 IS USM
EF 24-85mm f/3.5-4.5 USM
EF 24-105mm f/4L IS USM
EF 28-105mm f/3.5-4.5 II USM
EF 28-135mm f/3.5-5.6 IS USM

are all "decent" (some better than decent) walk-around lenses for 1.3x
or 1.6x sensors.  Sounds like what you really want is a superb lens, but
why should Canon market a top-of-the-line lens for their
bottom-of-the-line camera bodies?

--/<eith
dtong22@yahoo.com - 31 Jan 2006 16:31 GMT
Keith

skip mentioned earlier : A brand new Canon 50mm f1.8 is about $80, the
1.4 is about $225.

Those fast prime lens are not exactly pricey compared with the zoom you
mentioned.  And price-wise, those $200-300 range fast prime should
match the budget of low-end canon dslr ($7-900 range).

Daniel
ps my walk around lens is a 50mm 1.4 for  the lowly pentax

> > Come on Canon, we want a decent walk-a-round lens for non-full frame DSLR's!
> > Ideally a 17-70 2.8L.
[quoted text clipped - 13 lines]
>
> --/<eith
 
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