I have 2 questions.
1) what is the physical form of an AA filter? Is it essentially a piece of frosted glass that sits in front of the sensor? Finely sandblasted, or what?
2) with no AA filter, would deconvolution sharpening work better in theory to recover diffraction blur? Since you now only need to correct for the lens PDF and not the combined effect of lens and AA filter? You don\'t actually \"lose\" sharpness due to diffraction, rather the information is just delocalized over multiple pixels. Would this help any in recovering moire? I forsee diffraction softness potentially being a significant issue since the pixel pitch is small.
Feb 05, 2012 at 04:58 PM
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