How does the D3 achieve such high ISO?

Started Feb 17, 2008 | Discussions thread
John Sheehy Forum Pro • Posts: 25,211
Re: This would make sense...

joe mama wrote:

I agree with your comments about Nikon's history and noise reduction,
but the D3 really is a very low noise camera, at the RAW level. I
need better files to measure exactly, but the D3 seems to have
slightly less image shot noise (highlights and midtones) and the
1Dsmk3 slightly less image read noise (shadows and at high ISOs,

...if the D3 has a more efficient microlens covering. If true, I
have to wonder why Canon did not also make a 100% efficient covering
as Nikon claims for the D3.

The Xti, 5D and 1Dmk2 are the last of the lower tier of QE. All the more current cameras have QE close to the D3.

They are very close in overall noise. Of course, the 1Dsmk3 has more
resolution. The other DSLRs out there, including all the previous Canons,
are inferior to both.

If the overall noise is virtually the same, then why is the D3
superior at ultra high ISOs? If it's simply NR, why is Nikon's NR so
much superior to NoiseNinja, NeatImage, etc.?

Is it? I like the natural look. I don't use any NR software, per se.

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