paulraphael
Member
LumoLabs -- Nikon D800 AA filter vs. D800E -- Whitepaper
This is interesting. Confirms the impressions posted here. In summary,
"A Bayer-AA filter strength of ~75% is moderate. In an ideal situation (low ISO, sharp lens, no shake, good focus etc.) it leaves enough contrast at the Nyquist frequency to recover all detail a sensor with the same resolution but without a Bayer-AA filter could have captured. On the other hand, it cannot completely eliminate the risk of false color moiré, only reduce its likelihood and visibility."
and
"As a rule of thumb, we found that (assuming 100% amount, in Lightroom terms) subtracting about 0.5 px from the sharpening radius used for a D800 image produces comparable sharpness and acceptable results. In practice, one may of course combine this with a larger radius and lower amount etc. "
Same site has the closest thing to a explanation of the autofocus sensor problem, and Nikon's internal reactions.
This is interesting. Confirms the impressions posted here. In summary,
"A Bayer-AA filter strength of ~75% is moderate. In an ideal situation (low ISO, sharp lens, no shake, good focus etc.) it leaves enough contrast at the Nyquist frequency to recover all detail a sensor with the same resolution but without a Bayer-AA filter could have captured. On the other hand, it cannot completely eliminate the risk of false color moiré, only reduce its likelihood and visibility."
and
"As a rule of thumb, we found that (assuming 100% amount, in Lightroom terms) subtracting about 0.5 px from the sharpening radius used for a D800 image produces comparable sharpness and acceptable results. In practice, one may of course combine this with a larger radius and lower amount etc. "
Same site has the closest thing to a explanation of the autofocus sensor problem, and Nikon's internal reactions.