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Photo Forum / Digital Photography / DSLR Cameras / November 2006

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D200 successor, when?

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Thomas T. Veldhouse - 07 Nov 2006 13:55 GMT
Judging by history, when might we see a successor to the Nikon D200?  I am not
asking whether one is needed, just when it might happen?  It seems to me that
a D3x or something similar will have to be released first, but I could be
wrong about that.  Still, the D200 has been out for one year and the D80 is
not eating into its market a little bit, so I wonder how long until the D200
is replaced by the D300 ;-)

I am due to upgrade my D70 in the upcoming months, and I wonder if I should
sit on it longer or jump on the D200.  In any case, I want a body that is
faster, sturdier and can use AI lenses ;-)

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Philip Homburg - 07 Nov 2006 14:29 GMT
>Judging by history, when might we see a successor to the Nikon D200?  I am not
>asking whether one is needed, just when it might happen?  It seems to me that
[quoted text clipped - 6 lines]
>sit on it longer or jump on the D200.  In any case, I want a body that is
>faster, sturdier and can use AI lenses ;-)

I have no idea what a D300 is supposed to offer at this moment. If there
are minor details Nikon may want to fix, they will probably release a
D200s. On the other hand, they kept the D100 for a long time.

I think that the next significant upgrade is a full frame sensor. From the
reviews it sounds as if the body is close to perfect (for the market segment).
Minor tweaks to the sensor (for a D200s model) may be possible, but nothing
major is to be expected. You can't just go for a 16 Mpixel sensor. And
12 or 14 Mpixel sensors don't make sense at the moment (one of the attractive
points of the Sony sensor is the economy of scale benefits Nikon gets).

It would be interesting if Sony, Nikon, and possible Leica would together
go for fullframe sensors. Nikon needs them to compete with Canon, Sony
probably wants one to show that they are serious about making professional
DSLRs, and Leica needs something that has a much better low light performance
than the currently have (and M8 users probably want full frame).

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achilleaslazarides@yahoo.co.uk - 08 Nov 2006 00:03 GMT
> >Judging by history, when might we see a successor to the Nikon D200?  I am not
> >asking whether one is needed, just when it might happen?  It seems to me that
[quoted text clipped - 17 lines]
> 12 or 14 Mpixel sensors don't make sense at the moment (one of the attractive
> points of the Sony sensor is the economy of scale benefits Nikon gets).

Indeed, it's hard to see what could be added to the body. I suppose
possible upgrades would be higher fps (but then they could add a
vertical grip, faster autofocus, call it D3h and sell it for 2-3 times
the price), higher resolution (doubtful for this sensor size), or
larger sensor (ie full-frame). I don't think any of these could happen
without it being given a new model number. I suppose that some minor
tweaks may be made and a D200s produced with them (eg maybe lower
readout noise from the sensor, better noise reduction for jpegs,
perhaps minor user interface improvements).

But if you actually compare a D200 to a D2X, the main difference is AF
speed, resolution, and maximum fps (I suppose the D2x might be more
heavily built, I don't know). And they both take (and meter with)
manual focus Nikon lenses. Anyway, in terms of camera features, the
D200 is an almost perfect camera (OK: Why did they dedicate two buttons
to WB and switching between jpeg and raw? And no external control to
switch between settings banks, even though it has a programmable FUNC
button? Argh!). Any improvements will be to the sensor, but short of
changing it, they will be minor.

> It would be interesting if Sony, Nikon, and possible Leica would together
> go for fullframe sensors. Nikon needs them to compete with Canon, Sony
[quoted text clipped - 7 lines]
> by. It was allowed to keep its horse, since horses were so cheap to make.
>     -- Douglas Adams in Dirk Gently's Holistic Detective Agency
Thomas T. Veldhouse - 08 Nov 2006 13:20 GMT
> Indeed, it's hard to see what could be added to the body. I suppose
> possible upgrades would be higher fps (but then they could add a
[quoted text clipped - 5 lines]
> readout noise from the sensor, better noise reduction for jpegs,
> perhaps minor user interface improvements).

14-bit color depth in RAW format would be an excellent improvement ... there
are currently no cameras capable of this today [for 35mm or APS-C formats
anyway].

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acl - 08 Nov 2006 13:47 GMT
>>Indeed, it's hard to see what could be added to the body. I suppose
>>possible upgrades would be higher fps (but then they could add a
[quoted text clipped - 10 lines]
> anyway].
>  

Do you find you often have posterisation in your photos? Personally, I
use compressed raw, which effectively decreases the number of bits used
in the top 2 stops (or thereabouts), and cannot see a difference.
So I don't think increasing the tonal resolution will make much difference.

As a matter of fact, the Fuji S3 seems to have a 14bit ADC (although I
don't know what they do with it); so does the Minolta Dimage A1.

Higher bit depth will increase either tonal resolution or dynamic range
(or some combination of the two). I don't it is likely that they will
use higher bit depth to get rid of having to use different ISOs.
Thomas T. Veldhouse - 08 Nov 2006 14:57 GMT
> Do you find you often have posterisation in your photos? Personally, I
> use compressed raw, which effectively decreases the number of bits used
> in the top 2 stops (or thereabouts), and cannot see a difference.
> So I don't think increasing the tonal resolution will make much difference.

I have seen no solid report that indicates any sigificant loss by using
compressed versus uncompressed raw files.  Certainly, we are not talking a
difference in "bits", which is huge.

> As a matter of fact, the Fuji S3 seems to have a 14bit ADC (although I
> don't know what they do with it); so does the Minolta Dimage A1.
>
> Higher bit depth will increase either tonal resolution or dynamic range
> (or some combination of the two). I don't it is likely that they will
> use higher bit depth to get rid of having to use different ISOs.

It won't affect ISO ... bit depth has nothing to do with dynamic range.  High
and low stops are not going to change, it is just the granularity of the
difference, or the tonal density that will change.  Clearly, the larger the
dynamic range you have, the more color depth you will need to maintain tonal
density.

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acl - 08 Nov 2006 16:09 GMT
>>Do you find you often have posterisation in your photos? Personally, I
>>use compressed raw, which effectively decreases the number of bits used
[quoted text clipped - 4 lines]
> compressed versus uncompressed raw files.  Certainly, we are not talking a
> difference in "bits", which is huge.

There is no loss that I can see. It works by effectively using a smaller
number of bits to represent the same range. It does this by not using a
linear scale for the two top stops (I think it's two), so effective
resolution (tonal resolution) is decreased there. The idea is to use
fewer bits for the same range (ie decrease resolution in the top part of
the range). This is the connection to lower bit depth.

>>As a matter of fact, the Fuji S3 seems to have a 14bit ADC (although I
>>don't know what they do with it); so does the Minolta Dimage A1.
[quoted text clipped - 8 lines]
> dynamic range you have, the more color depth you will need to maintain tonal
> density.

It is possible to have a high enough DR so that 12 bits are not enough.
Look, 2^12=4096. According to the measurements of RN Clark at
http://www.clarkvision.com/imagedetail/evaluation-nikon-d200/index.html
the D200 at ISO 100 has a full well capacity of around 32000 electrons.
If we ignore read noise (for the sake of this argument), clearly 12 bits
are not enough to count all the electrons; you'd need around 15 bits.
If we take into account read noise, then maybe 12 bits are enough, I
don't know. But for cameras with higher well capacities and/or lower
read noise, 12 bits are certainly not enough, and DR is thrown away
because of it (ie it part of the signal is measured by the sensor but
thrown away). Obviously, the implicit assumption above is a linear
mapping from electron numbers to the number that is recorded.

You say bit depth has nothing to do with dynamic range. It does, in the
sense that it is one of the factors that places an upper limit on the
possible DR (the others being the type of mapping that occurs from
electron count to the number that is recorded, eg linear, or perhaps
some sort of gamma mapping to squeeze more DR by selectively increase
and decrease resolution in specific ranges etc, and of course the actual
signal to noise ratio of the sensor and other supporting electronics).

In short, if your sensor can record 20 stops of DR (for argument's
sake), and you have 8 bits, then you'll have to use some nonlinear
mapping. Certainly, you'll lose resolution. This is what I said about a
tradeoff between DR and tonal resolution.

As for what I said about ISO: Meter a scene for ISO 800 and shoot it, at
ISO 800. Then, change ISO to 100, without changing the exposure, and
shoot the same scene. Amplify the signal in postprocessing (ie add 3
stops in the raw converter). Is the result the same? Why not, since in
principle the same number of photons were detected?
Thomas T. Veldhouse - 08 Nov 2006 16:26 GMT
>>>Do you find you often have posterisation in your photos? Personally, I
>>>use compressed raw, which effectively decreases the number of bits used
[quoted text clipped - 11 lines]
> fewer bits for the same range (ie decrease resolution in the top part of
> the range). This is the connection to lower bit depth.

Again, I ask you your source of information on this.  To my knowledge, they
use an algorithm to compress information and that it particularily affects the
highlights.  There is lossy compression (i.e. JPEG) and lossless compression
(i.e. LZW) and it is not clear to me which is used.  It is also not clear that
if lossy compression is used, the amount of damage done to the original data.
DNG claims it uses a lossless compression and it is capable of taking the 20MB
NEF (uncompressed) and making a 12MB DNG, which is about the same size that a
NEF (compressed) is.


> It is possible to have a high enough DR so that 12 bits are not enough.
> Look, 2^12=4096.

I agree and said so.  I said that to maintain tonal density with increased
dynamic range, one would need more color depth.  Making a 14-bit color depth
sensor does not imply anything about increased (or decreased) dynamic range.

> You say bit depth has nothing to do with dynamic range. It does, in the
> sense that it is one of the factors that places an upper limit on the
[quoted text clipped - 3 lines]
> and decrease resolution in specific ranges etc, and of course the actual
> signal to noise ratio of the sensor and other supporting electronics).

It doesn't affect dynamic range.  Dynamic range affects the tonal density for
any given color bit depth (for any given color bit depth, increased dynamic
range will result in decreased tonal density).

> In short, if your sensor can record 20 stops of DR (for argument's
> sake), and you have 8 bits, then you'll have to use some nonlinear
> mapping. Certainly, you'll lose resolution. This is what I said about a
> tradeoff between DR and tonal resolution.

We are talking the same effects. but you seem to have cause and effect
reversed.  Tonal density does not drive dynamic range.  For that fact dynamic
range does not drive tonal density.  They are related only in the sense of the
final image, for it to be useful needs to have a minimum tonal density and a
minimum dynamic range (the latter of which most people find adequate when
compared to film).  In short, we have reached an "acceptable" dynamic range
already [I suppose somebody out there would like more], but I would like to
see a higher tonal density for the SAME dynamic range ... hence the move from
12-bit to 14-bit color depth.

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achilleaslazarides@yahoo.co.uk - 08 Nov 2006 16:42 GMT
> >>>Do you find you often have posterisation in your photos? Personally, I
> >>>use compressed raw, which effectively decreases the number of bits used
[quoted text clipped - 20 lines]
> NEF (uncompressed) and making a 12MB DNG, which is about the same size that a
> NEF (compressed) is.

I must have missed when you asked for the source of information. A
quick google search turns up this
http://www.majid.info/mylos/weblog/2004/05/02-1.html
(it's for the D70, though). I suppose you could look through dcraw, but
c code makes me sick so I did not. There is no lossless compression
done on the uncompressed NEFs of my D200 at least (a shot of my lens
cap is the same size as one of a tree).

> > It is possible to have a high enough DR so that 12 bits are not enough.
> > Look, 2^12=4096.
[quoted text clipped - 14 lines]
> any given color bit depth (for any given color bit depth, increased dynamic
> range will result in decreased tonal density).

This is true if you keep the same number of bits. This is what I tried
to say.

> > In short, if your sensor can record 20 stops of DR (for argument's
> > sake), and you have 8 bits, then you'll have to use some nonlinear
[quoted text clipped - 10 lines]
> see a higher tonal density for the SAME dynamic range ... hence the move from
> 12-bit to 14-bit color depth.

I don't think I have cause and effect related. I did not say that tonal
density drives DR, nor the opposite. I said that, for a given number of
bits, one needs to decrease DR to increase tonal density and the other
way around. This might not be relevant to what you are thinking of,
however, I started by saying that I do not think a higher tonal
density, as you say, will have observable effects on colour. I then
continued to say that, perhaps a higher number of bits would result in
better DR. I then argued against this. My statements may seem upside
down when viewed from the viewpoint of what you're thinking, though.

Also, did you try what I described with shooting ISO 800 and ISO 100
with the same exposure? Do you think this would still be the case if
the ADC was (say) 100 bits?

I base my statements on the effect of increased tonal resolution on
what I see with compressed NEFs. Maybe I'm wrong, I don't know. But I
don't think so.
Paul Furman - 08 Nov 2006 17:15 GMT
> ...There is no lossless compression
> done on the uncompressed NEFs of my D200 at least (a shot of my lens
> cap is the same size as one of a tree).

Not sure I understand your statement but the D200 has the option to turn
off RAW lossy compression.

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achilleaslazarides@yahoo.co.uk - 08 Nov 2006 18:35 GMT
> > ...There is no lossless compression
> > done on the uncompressed NEFs of my D200 at least (a shot of my lens
> > cap is the same size as one of a tree).
>
> Not sure I understand your statement but the D200 has the option to turn
> off RAW lossy compression.

The guy I was responding to said that there are two kinds of
compression: Lossy and lossless (he also said some other things). I
responded by describing how the lossy compression in the D70 (and, I
assume, other Nikons, such as the D200) is implemented. In addition, I
said: "There is no lossless compression done on the uncompressed NEFs o
my D200". I base this belief on the fact that lossless compression
should be more efficient (ie result in smaller files) for photos with
little information (the back of my lens cap, rather than simply my lens
cap as I said) as opposed to scenes with more information (a tree). I
also took a quick look at dcraw (despite my allergy to c), but I am
rubbish at reading code (well, at writing it too), so may have
misunderstood.

Does that make my statement clearer? I know that the D200 can be set to
use uncompressed raw.

I hope nobody starts arguing now about a dark frame (the back of my
lens cap) having noise and thus not being really uniform. Having to
include almost all context around each statement one makes each and
every time gets tiring, and it is quite difficult to have efficient
exchange of information if everybody assumes that the person they are
conversing with has no clue what they are talking about (this isn't
meant to be a snide remark directed at you or anybody else in
particular, just an observation/random remark).
Thomas T. Veldhouse - 08 Nov 2006 19:26 GMT
> said: "There is no lossless compression done on the uncompressed NEFs o
> my D200".

I think the point is that it goes without saying that there is no compression,
lossy or lossless, for an uncompressed NEF ... just as the name implies.

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achilleaslazarides@yahoo.co.uk - 08 Nov 2006 20:41 GMT
> > said: "There is no lossless compression done on the uncompressed NEFs o
> > my D200".
>
> I think the point is that it goes without saying that there is no compression,
> lossy or lossless, for an uncompressed NEF ... just as the name implies.

If you noticed, there is a mini-rant at the end of my last post, to the
effect that it is tiring to have to recreate a complete, self-contained
context around each sentence at every post. Well. Here is how it arose:
Just after I wrote "...there is no lossless compression in an
uncompressed NEF", I thought "Well, someone is bound to say that of
course there isn't". (*). Next, I thought "well it's obvious what I
mean". After a couple of seconds, "Hmmm... I bet someone will reply
with exactly this comment anyway". So I got irritated in advance and
wrote my small rant.

Anyway. I guess irritating pedantry is one of the things we must put up
with in this newsgroup. (This was a nano-rant).

Cheers!

(*) Of course, the point is that here "uncompressed RAW" is a shorthand
way of writing "when the option RAW, as opposed to COMPRESSED RAW is
selected" (where RAW/COMPRESSED RAW is the option one selects in the
menus, ie what Nikon calls that particular format, and to which
absolutely no other meaning is to be attached to the two words for
purposes of this discussion). This is opposed to eg "uncompressed air"
in normal conversation, which is merely air which is not compressed.

> --
> Thomas T. Veldhouse
> Key Fingerprint: D281 77A5 63EE 82C5 5E68  00E4 7868 0ADC 4EFB 39F0
Thomas T. Veldhouse - 08 Nov 2006 20:55 GMT
>> > said: "There is no lossless compression done on the uncompressed NEFs o
>> > my D200".
[quoted text clipped - 14 lines]
> Anyway. I guess irritating pedantry is one of the things we must put up
> with in this newsgroup. (This was a nano-rant).

So, why didn't you just correct yourself and erase the comment that amounted
to "I found that my uncompressed raw file was indeed uncompressed" statement
of redundancy?  It would have saved you the irritation.

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achilleaslazarides@yahoo.co.uk - 08 Nov 2006 20:59 GMT
> So, why didn't you just correct yourself and erase the comment that amounted
> to "I found that my uncompressed raw file was indeed uncompressed" statement
> of redundancy?  It would have saved you the irritation.

Because it was not a mistake. Clearly, I failed to communicate my
message. My fault, no doubt.

I think this has gotten way beyond the point of diminishing returns, so
I'll leave it at that.
Greg "_" - 10 Nov 2006 03:21 GMT
> > Indeed, it's hard to see what could be added to the body. I suppose
> > possible upgrades would be higher fps (but then they could add a
[quoted text clipped - 9 lines]
> are currently no cameras capable of this today [for 35mm or APS-C formats
> anyway].

Nor are printers, like 4 color press, Lambdas, Light jet etc able to
output 14 bit.....
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Thomas T. Veldhouse - 10 Nov 2006 14:03 GMT
"Greg \"_\"" <grey_egg@greg_photo.com> wrote:

>> 14-bit color depth in RAW format would be an excellent improvement ... there
>> are currently no cameras capable of this today [for 35mm or APS-C formats
>> anyway].
>
> Nor are printers, like 4 color press, Lambdas, Light jet etc able to
> output 14 bit.....

Of course, I want the additional tonal density [from the increased color
depth] for processing purposes.

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acl - 10 Nov 2006 15:35 GMT
> "Greg \"_\"" <grey_egg@greg_photo.com> wrote:
>>>14-bit color depth in RAW format would be an excellent improvement ... there
[quoted text clipped - 5 lines]
> Of course, I want the additional tonal density [from the increased color
> depth] for processing purposes.

If it is only for processing, you may as well start with a 12-bit file,
convert it to (say) 16 bits and process that.
Thomas T. Veldhouse - 10 Nov 2006 17:59 GMT
> If it is only for processing, you may as well start with a 12-bit file,
> convert it to (say) 16 bits and process that.

Don't be silly.  What do you think I am doing now for goodness sake?

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acl - 10 Nov 2006 18:14 GMT
>>If it is only for processing, you may as well start with a 12-bit file,
>>convert it to (say) 16 bits and process that.
>
> Don't be silly.  What do you think I am doing now for goodness sake?

Well, you said you want the additional color depth for processing
purposes. I replied that you don't, you could just process at a higher
bit depth without actually capturing at it. And for this, I am silly?

I guess it teaches me a lesson.
Thomas T. Veldhouse - 10 Nov 2006 18:18 GMT
> Well, you said you want the additional color depth for processing
> purposes. I replied that you don't, you could just process at a higher
> bit depth without actually capturing at it. And for this, I am silly?

Yes, I do want the additional color depth for processing purposes.  Making a
12-bit image interpolated into a 16-bit image doesn't give you more data to
work with.  If it did, then all camera sensors would use a 2-bit color depth
and stretch it to a 16-bit depth image.  I want the 14-bit color depth to work
with in Camera Raw and then I will pull it into Photoshop as a 16-bit image
[clearly interpolation is used to generate the other two bits worth of
information ... no information is actually created, and in fact, a little is
lost].

You are silly because your implication is that I want to process with more
bits for the sake of saying I did it, as your statement indicates I can
generate 4 bits of information from the ether.

> I guess it teaches me a lesson.

Yes, it should.

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achilleaslazarides@yahoo.co.uk - 10 Nov 2006 18:39 GMT
> > Well, you said you want the additional color depth for processing
> > purposes. I replied that you don't, you could just process at a higher
[quoted text clipped - 8 lines]
> information ... no information is actually created, and in fact, a little is
> lost].

My implication was that, if the tonality is ok before processing (which
is not under discussion here; let's assume it is for this discussion,
as you did say for processing), then the errors due to processing will
be minimised by using a higher bit depth. eg try taking an 8-bit image
and doing very heavy manipulations to it, and then invert them; then
start again, and do the same thing, but this time, first promote the
image to 16 bits. You'll see the difference. I have never seen a
difference in real use, but you can easily force it and see it.

As for the 2-bit color depth, well, it seems you are once again (like
last time I attempted to discuss something with you) take what I said
out of context.

Actually, I don't know why I am wasting my time. You're right, I'm
silly, ignorant and stupid.

> You are silly because your implication is that I want to process with more
> bits for the sake of saying I did it, as your statement indicates I can
> generate 4 bits of information from the ether.
>  

Yes! You caught me!
Thomas T. Veldhouse - 10 Nov 2006 20:07 GMT
> My implication was that, if the tonality is ok before processing (which
> is not under discussion here; let's assume it is for this discussion,
[quoted text clipped - 4 lines]
> image to 16 bits. You'll see the difference. I have never seen a
> difference in real use, but you can easily force it and see it.

That is where you are incorrect.  The errors will be minimized if the original
bit depth was higher.  Taking an 8-bit image and converting it to a 16-bit
image to do processing and then converting it back to an 8-bit image for
printing will result in more data destruction than simply doing all the
processing on the 8-bit image in the first place.  The reason is that there is
some data loss when interpolating from 8-bit to 16-bit.  The less
interpolation needed, the less the loss.  It would be best if we could work in
12-bit on current files, as they originate as 12-bit.  Moving to 16-bit is
destructive to the original data [which is one reason you do work in the raw
converter before conversion .. the other is the data is linear in raw format,
so you can take advantage of the fact that half the data is the top stop of
highlights].

> As for the 2-bit color depth, well, it seems you are once again (like
> last time I attempted to discuss something with you) take what I said
> out of context.

No I didn't.  You are assuming that moving from 12-bit to 16-bit is not
destructive to the data.  It is.  Also, working in Camera Raw [which is what
we are talking about there] works with the linear data, and the more bits we
have to work with means teh more data we have and that means more control of
the conversion process from camera raw to RGB in Photoshop.

> Actually, I don't know why I am wasting my time. You're right, I'm
> silly, ignorant and stupid.

You don't seem to understand the process like you think you do.

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achilleaslazarides@yahoo.co.uk - 10 Nov 2006 22:00 GMT
> That is where you are incorrect.  The errors will be minimized if the original
> bit depth was higher.  Taking an 8-bit image and converting it to a 16-bit
[quoted text clipped - 23 lines]
>
> You don't seem to understand the process like you think you do.

OK, to avoid going around in circles, I took the same picture
(converted in capture one to 8 bit tiff), copied it, and applied the
same manipulations twice: once as it originally was (8-bit), the other,
I first converted to 16 bits, copied the layers from the other, and
converted back to 8 after flattening. The layers were: Levels, midpoint
4, Levels, midpoint 2, Levels, midpoint .5, levels, midpoint .25. The
results are here:
8 bits:
http://www.pbase.com/al599/image/70004144
16 bits:
http://www.pbase.com/al599/image/70004166

I think which one is worse is easy to see.
Routemeister - 11 Nov 2006 02:57 GMT
> Yes, I do want the additional color depth for processing purposes.  Making
> a
[quoted text clipped - 10 lines]
> is
> lost].
---------------------------
I don't believe interpolation happens as you described.  Rather, a 16 bit
file has 16 times more tonal steps compared to a 12 bit file.  So the 12 bit
info is "uniformly distributed" in the 16 bit space, i.e. there are "blank"
tonal levels in the 16 bit file.  As the image is processed in Photoshop,
the existing tonal data is shifted to another level, but it's possible to
shift in much smaller increments in 16 bit space, compared to 12 bit (or 8
bit) space.  The "interpolation" happens when one transfers the transformed
16 bit information to the 8 bit file that the web and printer understands.

The advantage of the 14 bit file is that it contains 4X more tonal
information to distribute in 16 bit space, so there are fewer blank tonal
levels.  However, unless Photoshop transformations are extreme, there's very
little real gain when it's changed to 8 bit format for the printer.

The real value of a high bit file comes when a tone curve is applied to the
linear data, especially in the shadow tones, to create a JPEG or TIFF (8
bit) file.  For simplicity, assume an 8 bit tone curve: Y= K * X(exp0.5)
Y ranges from 1 to 256
X ranges from 1 to 4096 (12 bit A/D converter), 1 to 16384 (14 bit (A/D
converter)
then K = 2 for the 14 bit file,  but K = 4 for the 12 bit file.
The 8 bit tone curve generated from the 14 bit file has 2X the information
compared to the 12 bit file.

For consumer digital cameras with 10 bit ADC converters, K=8, so there's no
tone information at all in the first 8 levels and only half as much compared
to the JPEG derived from a 12 bit A/D converter.  I believe this goes a long
way towards explaining the superior tonal quality seen in digital SLR photos
vs. consumer digital camera photos especially at low ISO & low compression,
where noise and artifacts aren't significant factors.

In the best of worlds, If Photoshop worked in linear space rather than the
tone curve transformed space, (but still displayed in 8 bit tone curve
transformed space) then the full value of the high bit A/D converter would
be preserved in the final 8 bit output file.

Regards, David "Routemeister" Thompson
http://picasaweb.google.com/david.routemeister

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Rita Ä Berkowitz - 11 Nov 2006 00:08 GMT
> Of course, I want the additional tonal density [from the increased
> color depth] for processing purposes.

One word!  "Encad"

Rita
Thomas T. Veldhouse - 11 Nov 2006 02:07 GMT
Rita ? Berkowitz <ritaberk2O04 @aol.com> wrote:

>> Of course, I want the additional tonal density [from the increased
>> color depth] for processing purposes.
>
> One word!  "Encad"

Well, that is not an "English" word, so please enlighten me.  I have a hunch I
won't appreciate it much.

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Rita Ä Berkowitz - 11 Nov 2006 12:29 GMT
>>> Of course, I want the additional tonal density [from the increased
>>> color depth] for processing purposes.
[quoted text clipped - 3 lines]
> Well, that is not an "English" word, so please enlighten me.  I have
> a hunch I won't appreciate it much.

www.encad.com

Sadly, now a "Kodak" company, but the hardware is still the standard in
printing that others, even Epson, strive to achieve.

Rita
Randall Ainsworth - 07 Nov 2006 14:36 GMT
> Judging by history, when might we see a successor to the Nikon D200?  I am not
> asking whether one is needed, just when it might happen?  It seems to me that
[quoted text clipped - 6 lines]
> sit on it longer or jump on the D200.  In any case, I want a body that is
> faster, sturdier and can use AI lenses ;-)

JESUS! They just came out with the D200. And Nikon hung onto the D100
for way too long. Calm down and deal with what's out there.
Thomas T. Veldhouse - 07 Nov 2006 15:19 GMT
>> Judging by history, when might we see a successor to the Nikon D200?  I am not
>> asking whether one is needed, just when it might happen?  It seems to me that
[quoted text clipped - 9 lines]
> JESUS! They just came out with the D200. And Nikon hung onto the D100
> for way too long. Calm down and deal with what's out there.

That is no answer.  D100 "for way too long" is partly what I am looking for.
I simply want to know when they are likely to release a new model.  If you say
three years down the road, then fine, D200 is fine.  If you say one year down
the road, I will almost certainly wait for that time.

What I would like to see in the next camera:

14-bit color channel
16MP
APS-C or Full Frame is fine
LOW NOISE
6+ FPS (most of my photography doesn't benefit from this anyway)
Some sort of Sensor cleaning technology
Everything else the D200 has already

I used to think full-frame was a good thing, but I am not at all sure of that.
APS-C seems to do just fine.  I have been very impressed by the results of the
D2x.  I had a chance to attend a seminar with John Shaw and he has indicated
he has been entirely digital since the D1 and he is putting out wonderful
images with the D2x ... printed at large sizes as well.  I can't ask for more
out of my own photos, so I am not so sure that Full Frame matters much to me
any longer.

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John McWilliams - 07 Nov 2006 16:05 GMT
> I used to think full-frame was a good thing, but I am not at all sure of that.
> APS-C seems to do just fine.  I have been very impressed by the results of the
[quoted text clipped - 3 lines]
> out of my own photos, so I am not so sure that Full Frame matters much to me
> any longer.

Not until you hold one and use it. Although I am also quite happy with
the 1.6 factor for sports and wildlife shooting.

Signature

John McWilliams

Thomas T. Veldhouse - 07 Nov 2006 16:20 GMT
> Not until you hold one and use it. Although I am also quite happy with
> the 1.6 factor for sports and wildlife shooting.

Why would holding a 35mm sensor camera somehow convince me that it is better?
At most, it is but a little bigger ...

As far as wide angle goes, I have seen excellent wide angle shots on APS-C and
I believe most 35mm digital sensors are suffering from vignetting issues.
Clearly there are trade-offs, but I am failing to see how they will really
affect the majority of photographers other than spec meisers.

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just bob - 07 Nov 2006 18:11 GMT
>> Not until you hold one and use it. Although I am also quite happy with
>> the 1.6 factor for sports and wildlife shooting.
[quoted text clipped - 8 lines]
> Clearly there are trade-offs, but I am failing to see how they will really
> affect the majority of photographers other than spec meisers.

I think what he means is when you take your existing lenses and put them on
a full-frame you are amazed at the view, especially if you remember the view
you had with your old lenses on a film camera.  I rented a 1Ds mkII recently
and had a bit of that feeling, but not perhaps as overwhelming as others
because I com from the 1.3 crop on the 1D. What *was* amazing on the 1Ds
mkII was the 16.6MP images. Wow. You really can resolve things as small as
human hair as with a medium format camera.
John McWilliams - 08 Nov 2006 02:22 GMT
>>> Not until you hold one and use it. Although I am also quite happy with
>>> the 1.6 factor for sports and wildlife shooting.
[quoted text clipped - 16 lines]
> mkII was the 16.6MP images. Wow. You really can resolve things as small as
> human hair as with a medium format camera.

Yes, that's pretty much it. The holding part is insignificant compared
to using it and seeing the results.

Signature

John McWilliams

Greg "_" - 07 Nov 2006 23:50 GMT
> > Not until you hold one and use it. Although I am also quite happy with
> > the 1.6 factor for sports and wildlife shooting.
[quoted text clipped - 6 lines]
> Clearly there are trade-offs, but I am failing to see how they will really
> affect the majority of photographers other than spec meisers.

I have an 11-18 that I believe outperforms the D70's sensor. I get much
more noise using it than the kit lens. Very wide DOF but not able
sharpen to the extent of the kit lens....I could be wrong :)
Signature

"As democracy is perfected, the office represents, more and more closely,
the inner soul of the people. We move toward a lofty ideal. On some great
and glorious day the plain folks of the land will reach their heart's desire
at last, and the White House will be adorned by a downright moron."
- H. L. Mencken, in the Baltimore Sun, July 26, 1920.

Reality-Is finding that perfect picture
and never looking back.

www.gregblankphoto.com

Alexander Arnakis - 07 Nov 2006 21:03 GMT
>What I would like to see in the next camera:
>
[quoted text clipped - 5 lines]
>Some sort of Sensor cleaning technology
>Everything else the D200 has already

You left out miniaturization. I have a D70, but it's just too clunky
for travel. I'm still using my Nikon FM2n for that reason.

A harbinger might be the new D40, which seems to be considerably
smaller than Nikon's previous DSLR offerings. Put the D200 features
into a package this size, and I'll buy!
Thomas T. Veldhouse - 07 Nov 2006 21:21 GMT
> You left out miniaturization. I have a D70, but it's just too clunky
> for travel. I'm still using my Nikon FM2n for that reason.
>
> A harbinger might be the new D40, which seems to be considerably
> smaller than Nikon's previous DSLR offerings. Put the D200 features
> into a package this size, and I'll buy!

I like the size of my F100 (and the D70 for that fact) just fine, and in fact,
I wouldn't like it to be any smaller than that.  They fit my hands perfectly
the way it is.

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Alexander Arnakis - 08 Nov 2006 22:32 GMT
>> You left out miniaturization. I have a D70, but it's just too clunky
>> for travel. I'm still using my Nikon FM2n for that reason.
[quoted text clipped - 6 lines]
>I wouldn't like it to be any smaller than that.  They fit my hands perfectly
>the way it is.

You must have bigger hands than I do. I find the D70 awkward to use,
ergonomically.

But just as important, the D70 doesn't fit into my Domke satchel bag,
which I use while traveling. The FM2 fits nicely, lens down, in the
top of the bag. It's handy whenever I need it, but the setup doesn't
brand me as a tourist, and doesn't scream "camera!" to any passing
thief.
Greg "_" - 10 Nov 2006 03:32 GMT
>  and doesn't scream "camera!" to any passing
> thief.

How do you actually know, until its stolen.
Signature

"As democracy is perfected, the office represents, more and more closely,
the inner soul of the people. We move toward a lofty ideal. On some great
and glorious day the plain folks of the land will reach their heart's desire
at last, and the White House will be adorned by a downright moron."
- H. L. Mencken, in the Baltimore Sun, July 26, 1920.

Reality-Is finding that perfect picture
and never looking back.

www.gregblankphoto.com

Adrian Boliston - 10 Nov 2006 21:24 GMT
>>  and doesn't scream "camera!" to any passing
>> thief.
>
> How do you actually know, until its stolen.

A dslr would not be an easy thing for a thief to steal without being noticed
as unlike a P&S camera which could be easily removed from a pocket or even a
table, it would be far more obvious due to it's bulk & weight.   Also the
camera could even be used as a *weapon* if it has a heavy f2.8 zoom attached
if you were threatened!
Greg "_" - 10 Nov 2006 22:09 GMT
> >>  and doesn't scream "camera!" to any passing
> >> thief.
[quoted text clipped - 6 lines]
> camera could even be used as a *weapon* if it has a heavy f2.8 zoom attached
> if you were threatened!

I guess it depends on the thief. As for the weapon part, going back to
my car after a wedding in a rather notorious place "in town" I was quite
sure I was being followed. It was obvious I was carrying camera gear.

I am not someone that intimidates easily and I considered using the
bracket and attached flash to beat any aggression out of the potential
attacker. Thankfully my stop came before he was able pull out whatever
he was trying to get out of his gym bag before I ducked into the
attended garage.
Signature

"As democracy is perfected, the office represents, more and more closely,
the inner soul of the people. We move toward a lofty ideal. On some great
and glorious day the plain folks of the land will reach their heart's desire
at last, and the White House will be adorned by a downright moron."
- H. L. Mencken, in the Baltimore Sun, July 26, 1920.

Reality-Is finding that perfect picture
and never looking back.

www.gregblankphoto.com

Alexander Arnakis - 11 Nov 2006 01:16 GMT
>A dslr would not be an easy thing for a thief to steal without being noticed
>as unlike a P&S camera which could be easily removed from a pocket or even a
>table, it would be far more obvious due to it's bulk & weight.   Also the
>camera could even be used as a *weapon* if it has a heavy f2.8 zoom attached
>if you were threatened!

I was a victim of two thefts, both in Athens, Greece. The first time,
my camera was stolen from a locked car. I guess the thief spotted the
camera, which was in an everready case wedged in a corner of the back
seat, and jimmied the car door lock.

The second time, I was "swarmed" by a team of five pickpockets on the
rush-hour Metro. They didn't bother my Domke bag (I had learned from
the first incident), but they got a *lot* of money from my jacket
pockets. These guys were so artful that any kind of weapon would have
been useless against them.

Never underestimate thieves.
Bill - 07 Nov 2006 23:44 GMT
>>What I would like to see in the next camera:
>>
>>14-bit color channel
>>16MP
>>APS-C or Full Frame is fine
>>LOW NOISE

If the sensor is 16mp APS-C, then it likely won't have low noise
without extensive processing in-camera. There is a definite advantage
to having larger pixel photo-sites. But that won't stop the the
companies from pushing the pixel counts to impress consumers,
regardless of image quality.

>>6+ FPS (most of my photography doesn't benefit from this anyway)
>>Some sort of Sensor cleaning technology

Automatic sensor cleaning is a gimmick. The only reason Canon and Sony
have jumped on it is to be competitive. Whether it works or not, it's
still a marketing tool, and they can use it to help sell their
products. I expect Nikon will jump onboard for their low-end models as
well.

> You left out miniaturization. I have a D70, but it's just too clunky
> for travel. I'm still using my Nikon FM2n for that reason.

I seriously hope not. The Nikon D80 is a bit smaller than the D70s
(which I found to be almost perfectly sized), and that's as small as
I'll go.

I switched from the Canon Rebel XT to the Nikon D80 partly for the
handling and ergonomics, and I won't buy another tiny camera again. I
like being able to hold the camera properly, and use the functions it
offers without contorting my hand and fingers to do it, regardless of
the weight savings. I'll live with the extra 100 grams of added weight
(which I can barely notice anyway).

> A harbinger might be the new D40, which seems to be considerably
> smaller than Nikon's previous DSLR offerings.

The D40 (if it even exists) will be for first-time DSLR buyers only -
the most basic user who wants a DSLR package for snapshots and
vacation pictures. It obviously won't be targeted at the amateur or
enthusiast markets. The D50 and D80 are much more practical options
for those people.

For casual shooters the tiny cameras are fine since they don't get
aching fingers from carrying the camera and shooting half the day or
more. If all you want is to take snaps, then the little cameras do the
trick nicely. But for anyone more serious about shooting and taking
lots of photos, the handling can be very important.

I just wish I had realized that when I switched to digital a year and
a half ago.
Thomas T. Veldhouse - 08 Nov 2006 13:23 GMT
> Automatic sensor cleaning is a gimmick. The only reason Canon and Sony
> have jumped on it is to be competitive. Whether it works or not, it's
> still a marketing tool, and they can use it to help sell their
> products. I expect Nikon will jump onboard for their low-end models as
> well.

Considering that I have been plagued with sensor [and viewfinder] dust lately,
I am willing to give it a try.  Cleaning the sensor is a pain and is very
iterative.

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Adrian Boliston - 08 Nov 2006 00:12 GMT
> You left out miniaturization. I have a D70, but it's just too clunky
> for travel. I'm still using my Nikon FM2n for that reason.

I find it's *lenses* that tend to be responsible for bulk and weight rather
than the body itself.   The small bodied d80 feels fine with a 50mm 1.8
mounted, but does not feels as ergonomic as my d70s when I have got a 17-55
& flashgun fitted.
Greg "_" - 07 Nov 2006 23:44 GMT
> What I would like to see in the next camera:
>
[quoted text clipped - 15 lines]
> out of my own photos, so I am not so sure that Full Frame matters much to me
> any longer.

Amen, however I've heard 12mp is the limit for current technology on the
APS-c sensor and 16 is the limit for FF....if one wants optimal results
of less noise and better resolution.

Still 12mp is a lot better than my 6mp D70......ten not so shure.
Signature

"As democracy is perfected, the office represents, more and more closely,
the inner soul of the people. We move toward a lofty ideal. On some great
and glorious day the plain folks of the land will reach their heart's desire
at last, and the White House will be adorned by a downright moron."
- H. L. Mencken, in the Baltimore Sun, July 26, 1920.

Reality-Is finding that perfect picture
and never looking back.

www.gregblankphoto.com

Bill - 07 Nov 2006 23:52 GMT
>> D2x.  I had a chance to attend a seminar with John Shaw and he has
>> indicated
[quoted text clipped - 13 lines]
>
> Still 12mp is a lot better than my 6mp D70......ten not so shure.

I don't really care how many pixels are in the camera (within reason).
I care more about image quality, noise, lense sharpness and contrast,
and camera handling and functionality.

My new Nikon D80 has a 10mp sensor, but I'd be just as happy if it had
6mp or 16mp, as long as the above conditions are met.
just bob - 07 Nov 2006 15:21 GMT
> Judging by history, when might we see a successor to the Nikon D200?  I am
> not
[quoted text clipped - 11 lines]
> sit on it longer or jump on the D200.  In any case, I want a body that is
> faster, sturdier and can use AI lenses ;-)

At least another 18 months I'd guess.
Thomas T. Veldhouse - 07 Nov 2006 16:21 GMT
> At least another 18 months I'd guess.

Thank you.  

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Geoff - 07 Nov 2006 20:59 GMT
>> At least another 18 months I'd guess.
>
> Thank you.

But then there will be another new model out sometime after that .....

geoff
Thomas T. Veldhouse - 07 Nov 2006 21:23 GMT
>>> At least another 18 months I'd guess.
>>
>> Thank you.
>
> But then there will be another new model out sometime after that .....

But your current model will stay current for quite some time.  Having said
that, my issue isn't to have the latest and greatest, but if some of the
features that I would like are going to be available in a year, then I would
wait for them and continue with my current hardware.

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just bob - 07 Nov 2006 23:59 GMT
>>>> At least another 18 months I'd guess.
>>>
[quoted text clipped - 7 lines]
> would
> wait for them and continue with my current hardware.

Sounds like your current camera does OK and the D200 does only some of what
you want. I know how you feel.

My budget would get me a used Canon 1D mkII or a used 5D but the 1D mkII is
only 8MP and I really need at least 12MP and the 5D is not a 1-series camera
which I've already been using and love in the first generation 1D model. I
rented a 1Ds mkII 16.6MP and it was perfect but at $5k used that's 150% over
budget!

You and I both should just buy new glass this year and wait for the next and
I'll continue to rent the 1Ds when I need to.
Greg "_" - 07 Nov 2006 23:50 GMT
> > At least another 18 months I'd guess.
>
> Thank you.

I would guess sooner, it will be a D3xs or other,
Signature

"As democracy is perfected, the office represents, more and more closely,
the inner soul of the people. We move toward a lofty ideal. On some great
and glorious day the plain folks of the land will reach their heart's desire
at last, and the White House will be adorned by a downright moron."
- H. L. Mencken, in the Baltimore Sun, July 26, 1920.

Reality-Is finding that perfect picture
and never looking back.

www.gregblankphoto.com

Rita Ä Berkowitz - 08 Nov 2006 00:06 GMT
> I would guess sooner, it will be a D3xs or other,

The new D3x is going to be FF.  I preordered mine.

Rita
Thomas T. Veldhouse - 08 Nov 2006 13:25 GMT
Rita ? Berkowitz <ritaberk2O04 @aol.com> wrote:

>> I would guess sooner, it will be a D3xs or other,
>
> The new D3x is going to be FF.  I preordered mine.

Yeah, alright troll.

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Rita Ä Berkowitz - 08 Nov 2006 22:22 GMT
>> The new D3x is going to be FF.  I preordered mine.
>
> Yeah, alright troll.

LOL!  Apparently you don't keep up with current news?  Ken Rockwell is
taking preorders and the wait list is growing fast.  I'm number 162 on the
list.

http://www.kenrockwell.com/nikon/d3x.htm

Rita
Bill - 09 Nov 2006 03:39 GMT
>>> The new D3x is going to be FF.  I preordered mine.
>>
>> Yeah, alright troll.
>
> LOL!  Apparently you don't keep up with current news?  Ken Rockwell
> is taking preorders and the wait list is growing fast.

Rockwell?
News?

Yeah...whatever...

>  I'm number 162 on the list.

A list that doesn't exist.

> http://www.kenrockwell.com/nikon/d3x.htm

From a page that is a quite clearly intended as a joke.

Thomas is right...you have your line in the water, trolling again...
Thomas T. Veldhouse - 09 Nov 2006 16:00 GMT
Rita ? Berkowitz <ritaberk2O04 @aol.com> wrote:

>>> The new D3x is going to be FF.  I preordered mine.
>>
[quoted text clipped - 5 lines]
>
> http://www.kenrockwell.com/nikon/d3x.htm

Now that's funny!  Foveon in a Nikon ;-)

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Rita Ä Berkowitz - 09 Nov 2006 22:38 GMT
>> LOL!  Apparently you don't keep up with current news?  Ken Rockwell
>> is taking preorders and the wait list is growing fast.  I'm number
[quoted text clipped - 3 lines]
>
> Now that's funny!  Foveon in a Nikon ;-)

LOL!  That's slated for the D4x.

Rita
Jan Böhme - 07 Nov 2006 17:41 GMT
just bob skrev:
>Thomas T. Veldhouse:
> > I am due to upgrade my D70 in the upcoming months, and I wonder if I
[quoted text clipped - 3 lines]
>
> At least another 18 months I'd guess.

Also, please note that the lag phase between announcement and actual
ready availability historically has been considerably longer for Nikon
than for Canon. The D200 itself is a case in point. At least here in
Sweden, although a very small number of cameras were sold to the
highest positions on waiting-lists earlier, the D200 became readily
available at about the same time as the Canon 30D, which was announced
almost four months later.

Jan B?hme
Bill - 07 Nov 2006 18:30 GMT
>> At least another 18 months I'd guess.
>
>Also, please note that the lag phase between announcement and actual
>ready availability historically has been considerably longer for
>Nikon
>than for Canon. The D200 itself is a case in point.

That doesn't seem to be the case for some models. The D50 and D80
suffered no lag time in their production. New lenses, aside from the
18-200 VR, have also appeared relatively quickly.

I'm not saying Nikon won't have lag time, just that it may not happen
with the next models.
Bill - 07 Nov 2006 18:25 GMT
> Judging by history, when might we see a successor to the Nikon D200?
> I am not
[quoted text clipped - 13 lines]
> that is
> faster, sturdier and can use AI lenses ;-)

I think Nikon may introduce a D200s model that has better high ISO
noise performance and a few minor tweaks. I don't think they'll
introduce a D300 for a while yet.
Bill Crocker - 08 Nov 2006 01:13 GMT
> Judging by history, when might we see a successor to the Nikon D200?  I am
> not
[quoted text clipped - 11 lines]
> sit on it longer or jump on the D200.  In any case, I want a body that is
> faster, sturdier and can use AI lenses ;-)

Is it even possible to improve upon the D200?

Bill Crocker
Espen Stranger Seland - 08 Nov 2006 12:37 GMT
>Is it even possible to improve upon the D200?

Better AF. I'm not satisfied with the D200 AF. The big difference
between D2x and D200 is the AF module. But I would guess they won't
upgrade much, since the D200 would be a too strong competitor to the
pro-line.

-espen
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Panos - 08 Nov 2006 11:45 GMT
> Judging by history, when might we see a successor to the Nikon D200?  I am not
> asking whether one is needed, just when it might happen?  It seems to me that
[quoted text clipped - 10 lines]
> Thomas T. Veldhouse
> Key Fingerprint: D281 77A5 63EE 82C5 5E68  00E4 7868 0ADC 4EFB 39F0

My guess is that Nikon will release a D3 camera with a full size sensor
to complement and not replace the D2xs. Then it will replace the D200
with a full size sensor model of lower specs compared to the D3 and
discontinue the D2xs, something similar to the Canon EOS 5D. But it
will first release the entry-level D40 to attract more customers who
want something better than a P&S camera to their system.
bmoag - 08 Nov 2006 17:57 GMT
If you have used the soon to be ubiquitous 10mp APS sized sensor (Sony,
Nikon, soon to be Pentax) you will see that it already delivers images
technically beyond the need of advanced amateurs and most professionals.
The viewing system through the D80/200 is such an improvement over the D70
it is worth upgrading for that alone.
Noise is not as visible as with the 6mp sensor and it has never been clear
to me what users expect when you start ratcheting up the ISO dial toward the
stratosphere. I think the increased number of megapixels makes the noise
that is there less ugly but not really less.
The major lag in digital imaging sensor technology is dynamic range--these
things just do not tolerate overexposure. Shooting raw one can fake a wider
latitude but it would be a real boon if this issue could be addressed.
Image stabilization is a plus/minus thing for me, not a deal breaker.
I am surprised Nikon did not build some form of sensor cleaning technology
into the D80, however dubious these functions are in real world use. Dust on
the sensor is a very real problem if you are a habitual lens changer.
Bill - 09 Nov 2006 04:06 GMT
> If you have used the soon to be ubiquitous 10mp APS sized sensor
> (Sony, Nikon, soon to be Pentax) you will see that it already
> delivers images technically beyond the need of advanced amateurs and
> most professionals.

That can be debated. I know that upgrading from 8 to 10 is
questionable, and even going from 6 to 10 may not offer any benefit to
someone who only makes 4x6, 5x7 and 8x10 prints.

> The viewing system through the D80/200 is such an improvement over
> the D70 it is worth upgrading for that alone.

Very true, and was one of driving forces for my switching from Canon
to Nikon.

> Noise is not as visible as with the 6mp sensor and it has never been
> clear

Just to clarify, it's not just the sensor that relates to noise, but
the processing algorithms in the camera. The D50 has a 6mp sensor
which is almost the same as the D70 sensor, yet it has one of the
lowest noise levels of any digital camera on the market.

> to me what users expect when you start ratcheting up the ISO dial
> toward the stratosphere. I think the increased number of megapixels
> makes the noise that is there less ugly but not really less.

Only at small print sizes.

Note that the design of the D80 produces less noisy images than the
D200 out of the camera when using high ISO values. It also has a lot
less noise than the D70/s.

> The major lag in digital imaging sensor technology is dynamic
> range--these things just do not tolerate overexposure.

Then learn to shoot properly.

:-)

I don't consider dynamic range to be an issue since it's as good as
anything else today. It would be great if you could take a shot of the
beach on a clear day and get proper exposure of the sun, water, sand,
trees, grass and bushes. But that's not practical.

I would like to see more tonal range, but again it's not something I'd
get excited about.

> I am surprised Nikon did not build some form of sensor cleaning
> technology into the D80, however dubious these functions are in real
> world use.

I'm really glad they didn't waste the development costs of a sensor
cleaner in the D80. I've had my new D80 for two weeks and it still
doesn't have a single spot on the sensor, and I've been busy with it
swapping between three lenses a lot.

> Dust on the sensor is a very real problem if you are a habitual lens
> changer.

Only if you're neurotic about dust, pixel peeping, etc.

I change lenses all the time and it's never been an issue with a Canon
Rebel XT, Nikon D70s, and now a D80. I may change lenses a dozen times
in a single session. The few times I opened the mirror box to clean
the sensor in the older models, it was a trivial task with a rocket
blower. In over a year and a half of using DSLRs, I have yet to
consider cleaning the sensor to be anything more than a very trivial
part of changing lenses, putting on the flash, using a filter, etc. No
big deal at all.
Greg "_" - 10 Nov 2006 03:27 GMT
>  Dust on
> the sensor is a very real problem if you are a habitual lens changer.

Taking the battery out of the camera prior to removing the lens and
having the replacement lens ready as well as brushing the camera and lens
off before the switch all seem to help quite a bit.
Signature

"As democracy is perfected, the office represents, more and more closely,
the inner soul of the people. We move toward a lofty ideal. On some great
and glorious day the plain folks of the land will reach their heart's desire
at last, and the White House will be adorned by a downright moron."
- H. L. Mencken, in the Baltimore Sun, July 26, 1920.

Reality-Is finding that perfect picture
and never looking back.

www.gregblankphoto.com

 
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