21MP 1Ds Mark III Announced

Hi All,

The 1Ds Mark III officially announced:
http://www.dimagemaker.com/article.php?articleID=1071

Cheers,

Wayne

--
Wayne J. Cosshall
Publisher, The Digital ImageMaker, http://www.dimagemaker.com/
Blog http://www.digitalimagemakerworld.com/
Photography and Art Forums http://www.dimagemaker.com/forums/index.php
Personal art site http://www.cosshall.com/

 

Good news for Hard rive manufacturers LOL

Mick Brown

 

Ain't that the truth

Wayne J. Cosshall
Publisher, The Digital ImageMaker, http://www.dimagemaker.com/
Blog http://www.digitalimagemakerworld.com/
Photography and Art Forums http://www.dimagemaker.com/forums/index.php
Personal art site http://www.cosshall.com/

 

Pretty impressive, but you can get a medium format Mamiya ZD for $1,000
less.

 

Mamiya says US$9,999. Where are you seeing it for US$7,000???

http://www.mamiya.com/cameras.asp?id=1&id2=2281

David J. Littleboy
Tokyo, Japan

 

Hey David, did you notice the 1ds mkiii's pixel pitch?

 

Nope. Haven't computed it yet. Sheesh. I must be getting old. (Or fried by
the heat.)

Let's see. 21.1 MP implies that'd be 8.2MP in a 1.6x camera or 9.4MP in a
1.5x camera.

5616 x 3744 => 3744/24 = 156 pixels per mm, or 6.4 microns.

That's a Nyquist frequency of 78 lp/mm, and you'd like 50% MTF at around 75%
of that, so that's 58 lp/mm. 800/58 = 13.8, so the beast will probably be,
like the D2x, a tad soft at f/16.

(Has the heat fried my math???)

So for max sharpness, you're going to be shooting at f/8 and f/11 a lot with
lenses under 100mm.

Of course, my reading of figure 5 on this page indicates that there's no
point to bothering with a 14-bit A/D converter on either this or the 40D.
(Note that the 10MP D200 is a straight line down from its ISO 100
performance, which means that the ADC + electronics are adequate to pull out
all the sensor is giving at ISO 100.) It sure looks to me that 14 bits only
will be making sense on the 1DIII and 5DII (if such a creature appears at
16MP).

http://www.clarkvision.com/imagedetail/digital.sensor.performance.summary/index.html

David J. Littleboy
Tokyo, Japan

 

No calculator, no idea 6 microns seems right. Right about as big as
the d200's pixels

lateral CA can be a serious problem on the d200. I think it'll be a
nightmare to find lenses to use on the 1dsmkiii (if you look at
pixels).

Yes, that's what one would conclude from that page. Probaly the case.
Let's see what the advantage of 14 bit ADCs are for the 10mp camera
(the 1dmkiii or whatever the right name is), I am curious. Do you know
of any test or practical demonstration?

A few days ago, I attempted to go to dpreview to check if anybody had
done it; instead, I ended up having an argument in the nikon forum
with some pompous idiot who claimed that the size of the diffraction
spot depends on the focal length (he also claimed that photons have a
length equal to their wavelength, and other things of this sort...).
So if there's a test somewhere there about the 14-bit ADCs, I missed
it Any links?

 

So how long have you been a shill for Canon??

 

I thought Wayne was a Nikon shill?

 

Don't be rude, both of you!

Let me see if I can explain how the technical press work. We receive
press releases. Some rewrite the press release in their own words and
publish it. I prefer to just publish the press release until I have
something meaningful to say from actually using the camera (if that is
what we are talking about). Each magazine, whether online or in print
does this, in their own way.

CHeers,

Wayne

Wayne J. Cosshall
Publisher, The Digital ImageMaker, http://www.dimagemaker.com/
Blog http://www.digitalimagemakerworld.com/
Photography and Art Forums http://www.dimagemaker.com/forums/index.php
Personal art site http://www.cosshall.com/

 

Ooops - it's the ZD back for $7k.
You get a "kit" lens with the $10k ZD package.
But if it's the same 80mm f2.8 lens as listed at B&H, then it's a $600 lens.

Darn - I was going to try that to get my wife to allow me to buy one -
"but see - it's less expensive than that one".

Back to reality, as nice as it is, I think that the 40d for $1299 is
more of a shake up to the DSLR market than the "long expected" IDsIII.

 

Well, what's so surprising about it? Take the specs of the 30D,
increase everything a bit, and there you go. The same as every time.
Just like the 1d mkiii was, and so on.

 

IMO, the surprise is that, as you say, they increased *everything* a bit.

 

Nothing says you have to upgrade *every* time. You can keep camera 'a'
for a few years, then jump to camera 'd' a few years later. Otherwise
the $/benefit ratio is rather low.

 

Yes of course I agree. I was making a remark on frederick's comment
thatie the 40D isn't that surprising (I thought, at least).

 

http://www.pbase.com/jps_photo/image/76001165

This is levels 0-255 (in the green channel) out of the 14256 levels of a
1Dmk3 ISO 100 file, with 14-bit, 12-bit, 11-bit, and 10-bit precision from
the original RAW. The mathematical conversions to RGB are all performed
with the same precision, though, as they were padded with zeros to replace
the truncated bits.

My padding of the zeros is probably key in getting almost exactly the same
results between 14-bit and 12-bit, and unfortunately, the masses are going
to draw the wrong conclusions about why they seem to get better results
with the 14-bit files; it may very well be that most or all of the benefit
comes from forcing conversion software to use two more bits of precision;
something they should have been doing anyway.

--

 

I thought he was shill for dimagemaker?

 

I didn't understand. How did you truncate, did you simply replace the
2 lowest bits by zeros or what?

 

I read the specs at dpreview. I still wouldn't buy it. While the (finally!) 2x
resolution increase would be nice over a 5mpx camera, I get the very same
features in my S3 IS with CHDK and can take the very same resolution as the 1Ds
with a 4-panel stitched frame, plus so many more features that the 1Ds can never
have. Minus all the hundred or so drawbacks that any DSLR has over any P&S
camera.

They can keep it.

Only fools out to impress an uneducated client would buy it. They'll make a
fortune selling to that vast audience. If someone gave one to me I would find it
an interesting novelty to leave on the shelf. What else would I do with it? Did
you check out that gargantuan size and weight?

They can keep it.