D800 AA filter

Started Jan 19, 2012 | Discussions thread
mattr Veteran Member • Posts: 3,505
Re: Can misfocus substitute for the AA filter?

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.

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