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Matsu
Veteran Member
 
Join Date: May 2004
 
2012-03-18, 19:09

The amount of armchair analysis out there is both helpful and hilarious.

Some have gone so far as to speculate, based on light reflections in the glass bottles of the test scene, that some of imaging resources lights were low, leading to the 2/3rds stop longer shutter speeds shown by the 5D3 at equivalent ISO.

But I'm not convinced. The 5D3 meters the scene exactly the same as the 5D2, and those tests were years apart. Furthermore DXO shows the 5D2 reporting ISO a bit more ambitiously than some of its peers. A lighting inconsistency seems unlikely, despite the level of scruitiny.

The D800 OTOH, meters the scene exactly like the D4, so the Nikons would appear to be more sensitive than the 5D series at any given ISO. I haven't seen a test for the 1Dx yet, for some reason I expect it to report ISO more accurately than the 5D.

Last edited by Matsu : 2012-03-18 at 20:37.
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