Ken. An example is the image sharpness of my FujiFilm X-Pro1. The colour matrix is non-standard and designed to avoid Moire. Consequently, the AA filter is very weak, if not non existent, hence, image sharpness. Having said that Moire is noticeable from time-to-time. Almost inescapable.
One Mark IIID owner removed the AA filter shortly after purchasing the camera, with noticeably better image sharpness - but, Moire is problematic because of the standard Bayer matrix minus AA.
I was very disappointed with my first mod, because the image was too soft. The second is much better without the AA filter.
As an aside. Removing the AA/Piezo assembly provides a niche for a small nichrome dew heater on the plastic filter frame. A very thin heater element will fit nicely into the depression that houses the Piezo unit. DSLR cold finger cooling needs a solution to sensor fogging. With that, it will be very successful.
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