Nikon D4s studio samples just posted!

Started Mar 17, 2014 | Discussions thread
bobn2
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Re: exif says manual exposure
In reply to David314, Mar 18, 2014

David314 wrote:

Iliah Borg wrote:

David314 wrote:

Iliah Borg wrote:

Was it auto exposure?

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the D4S looks to be shot 1/3 stop higher shutter speed but is underexposed by less than that

on 1600, white patch of CC24: D4s shows average green 5124, D4 5924. That's 0.2 EV difference in favour of D4.

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on the same white patch, ISO 24600, the images I posted above

=6215.2/5549.64 = 1.12 = .16 ev which is what I had to adjust in capture NX to get the gray point at the same value in the D4S

so the D4S seems somewhere from a 1/5 to a 1/6 ev more sensitive at the same ISO or the lights have dimmed from the D4 test

With the old scene, they didn't try to control the lighting. I don't know whether they do now.

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Bob

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