The Nikon D3 is 12 MP, and can extend its ISO range to 25600.  I think
I'd much prefer higher ISO over more pixels.  8x10 prints seem quite
manageable, but every print bigger than  that, even 8x12, has turned
out to be a pain to deal with.  Sticking to 8x10 means you only need
4MP for  a good print (albeit with perfect framing), so 8 or 11 seems
like a good number.  Lower pixel counts should translate directly into
higher ISO ratings.  The Nikon D3 has 8.45 microns of pitch, and
photons range in "size" from .4 to .75 microns.  That is a tremendous
amount of light hitting each receptor.  The 1Ds only has a 6.4 micron
pixel pitch, which is 70% of the size of the Nikon.  It shows in the
specs, too.  The Canon only does ISO 1600, or 3200 with extension.

After reading the specs on the 1Ds mk III I didn't think it was
something I would want.  The ISO is limited to 3200, which really
hinders visible light photography, and the slower fps would hinder
taking pictures of people running and jumping.

On 8/27/07, Skip <[EMAIL PROTECTED]> wrote:
> When the 1D mk III came out, one of the improvements to its sensor was a
> closer spacing of the pixels, so that the 10mp had the same pixel pitch as
> the older 8mp sensor.  If the 1Ds mkIII uses the same spacing, the 21mp
> should have the same pixel pitch as the old 16mp mkII.  By extension, the
> 5D's successor could go as high as 15.7mp and still have the same pixel
> pitch as the current 5D's 12.7 mp.
> By the way, the "full frame" sensor of the 1Ds mkIII is less of a joke
> compared to the less than 6x4.5 sensor of "Medium Format" digitals than the
> actual 35mm film frame was compared to real MF...
> Skip Middleton
> www.shadowcatcherimagery.com
> www.pbase.com/skipm

-- Schlake

This is my gmail account, I can also be reached at [EMAIL PROTECTED], if
the TCC is working.
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