Sat 22-Sep-12 03:09 PM | edited Sat 22-Sep-12 03:10 PM by richardd300
Living in North Wales we have a similar problem, dull days where exposures are difficult especially on my 28-300mm. I've just sold my D700, but I rarely used to used the DOF button I'm afraid. I've just tried your test on my D800 on both my 24-70 and 28-300mm setting the aperture to f2.8 closing down to f5.6. I then repeated the test at f3.6 and closing down to F5.6. The view on both lenses was identical and although darker not massively darker. I can't remember my D700 giving about the same results or not I'm afraid, but would have thought they would be similar in this respect on both cameras.
<<The loss of light is really quite noticeable, so much so that I can see the 'grain' of the focussing screen in the viewfinder>>
That was not my experience with the D700 or now with the D800. Is this something new to your D700 or something that's always been there?