D800 AA filter

Started Jan 19, 2012 | Discussions thread
Flashlight Veteran Member • Posts: 6,909
Re: Can misfocus substitute for the AA filter?

mattr wrote:

Flashlight wrote:

nathantw wrote:

Doubt it. Your photo will just be out of focus. For example, if you were focusing closely on the eyes of a model and you had a little AF adjustment, the focus will suddenly be the nose or before the eye. Not quite what you have in mind.

Yes, this will be a problem, except for flat subjects.

mattr wrote:

When shooting moire-prone subjects with very sharp lenses at large apertures (little diffraction), can I just dial in some AF adjustment to get a little bit of misfocus to avoid moire?

A better way would be to stop down to f/22 or something so diffraction would act as AA filter.

Stopping down is not always an option, for example in bird photography when the shutter speed is required.

Moire is here to stay until the sensors get so dense the lenses will act as blur filter, which is, IMO, the preferred situation. Even if we have to plow trough more posts of mr. Nissla that his computer is misconfigured or from mr. Bligh that he doesn't want shaky pixels.

Anyway even with an AA filter moire is still visible, although not as bad as without one. Not going back to film tough; Nikon we want a 400MP (or whatever) camera and we want it now! Not in 10MP updates, because then I'm long gone before I finally can take a picture! (all in jest of course).

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Philip

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