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Originally Posted by casstony
I've been keeping an eye on discussions on cloudynights and found a few websites with interesting info, but it's difficult to find comparison tests of dark current in various DSLRs for long exposures.
One site I found indicates that the D600 is not nearly as good as the D750 for long exposure noise. Assuming the test is fair it might be that the different processors (expeed 3 vs expeed 4) account for the different output from the cameras: https://improvephotography.com/39895...xposure-noise/ |
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So, with the intention of gathering up some test shots from a handful of different camera brands, I asked several friends, fellow Improve Photography contributors, and Improve Photography readers to grab their cameras and start doing some science to them.
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With the tests done by different people and possibly at different locations and times, I wouldn't read too much into them.
Also at ISO3200 some in-camera noise reduction is still performed, even if turned off.
They have the same Sony sensor so I find it hard to accept the huge difference.
I'd be more inclined to believe DXOMark's tests, which show minimal difference, and that is probably due to the D750's later Expeed IV processor.
https://www.dxomark.com/Cameras/Comp...D600___975_834