> But if the >incidence of moire is 0.1% or less, bird photography will be >an area where any extra detail really pays off big. > >I'm inclined to roll the dice a bit. In examining my bird >photos, the really visible feather patterns are confined to a >small percentage of images - very close or macro. Those are >rare enough that it might be okay.
You may be referring to the general incidence of moire across all photographic subjects? If so, I think it's worth keeping in mind that such averages are bracketed by categories with much higher incidences and much lower incidences of moire. I think that buying a D800 for its amazingly high resolution invites a concentration on photographically capturing subjects possessed of very fine detail, complex patterns and textural juxtapositions - bird feathers among other things - subject matter which can cause moire.