Photographic Dynamic Range (PDR) is a More Useful Measure than the DxOMark Landscape Score

Started Apr 17, 2015 | Discussions thread
Jack Hogan Veteran Member • Posts: 7,008
Channel Trajectories

bclaff wrote: So we can have a concrete discussion about this matter consdier the following charts:

D7100 PTC dark corner

D7200 PTC dark corner

D610 PTC dark corner

Bill, I get very similar numbers to yours, within a few hundreds of a stop. The D7100 Dxomark Landscape score looks off, it should be much closer to the D7200's, which looks right. Say within 1/3 of a stop.

Here is a question for you. See all those apparently different trajectories the separate color channels appear to be taking: do you think the read noise of the various channels in units of photoelectrons should therefore be different as well? I have recently convinced myself that they should not.


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