D800 AA filter

Started Jan 19, 2012 | Discussions thread
cluna Senior Member • Posts: 1,403
Re: Excellent link

bobn2 wrote:
.

One of the big problems with aliasing is that it's image wrecking quality is not really predictable. Not all aliasing is moire, and even that is hard to predict. So, its quite likely that you'd either need the filter on all the time, or else you'd still find a good proportion of spoiled images, just because it's unpredictable.

From my experience with the converted D300s, color moire is very common, but can be tricky to correct. Any other aliasing artifacts can be reduced with a simple blur but they are not typically an issue at all.. So most of the scene sharpness can be retained with only a local adjustment or even different raw converter. A little dither added to that region pre demosaicing would probably be better than blur (or desaturation in case of color moire)

-C

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