Noise... camera ISO sweet spots?

Started Dec 28, 2012 | Discussions thread
DSPographer Senior Member • Posts: 2,464
Re: Hmm...

Great Bustard wrote:

...I was basing my comments on sensorgen's figures for the D800:

which show a flat read noise response with regard to ISO, more or less.

There is something wrong with sensorgen's numbers. He is attempting to fit DXOmark's data, but somehow comes up with different values than I do. My fit to DXOmark's data is exact- which shows that they plotting a fit themselves instead of raw data. Since my fit to the DXOmark plot data is exact, I think sensorgen must be doing something wrong to get different values.

 DSPographer's gear list:DSPographer's gear list
Canon PowerShot G7 X Canon EOS 5D Mark II Canon EF 24mm f/2.8 Canon EF 50mm f/1.8 II Canon EF 200mm f/2.8L II USM +4 more
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow