D200 vs D70 Dynamic Range graph

Started Jan 30, 2006 | Discussions thread
OP davexl Senior Member • Posts: 1,058
Re: Good work, dave. But one thing puzzles me...

That is odd - my D200 nails it. Are you using the RGB histo or the all in one version?

Try doing a PRE WB on a gray card, then shooting a frame - it should be perfect.

Other ideas are maybe the lens you are shooting with is not performing that aperture correctly - that has been known to happen - try it wide open. (But then of course you may get vignetting, which will blur your sharp line in the histogram a little)

Just checking you didnt use the exposure fine tuning? I think that once set is invisible to the user. No custom curve loaded? Normal tone curve set?

John Yu wrote:

This agrees with my experience too -- midtone more open than D70's.

But one thing puzzles me. For an image of a 18% gray card, A +0.5ev
compensation is still required to put the peak of the on-camera
(liminosity) histogram to the centre.

I must miss something obvious... Any idea?
--
John

-- hide signature --

Regards,

David F.
Melbourne, Australia.
http://www.pbase.com/davexl/folio

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