I wonder whether it might be possible to adjust the amount of anti-aliasing the anti-aliasing filter applies in-camera, or whether that's a hard factor determined by the type of physical filter design placed in front of the CMOS sensor?
(just enjoying the pure speculation aspect of this, btw....)
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My friend wants to upgrade to the 5D from the 20D for the extra pixels for I believe two sound reasons: (1) You get more flexibility with cropping when you need to salvage and picture and (2) he can print 20 x 30 with better detail, which he currently does pretty well using the 8.2 MP 20D.
I like both the ideas. Costco will print--mail in only--20 x 30 for 10.00 US each. And having that extra pixel count for cropping is indeed nice.
My question is, do you think Canon will come out with a 20D that has 13 or more MPs? Or do you think they are going to phase out the 20D "type" camera and mass produce full frames like the 5D? You would have a larger gap between "prosumer" and Pro type categories, but after markets of scale begins to take effect, that 5D type category could get down to the high teens (1950.00 US) I suppose. Still, that's a big jump from the Rebel XT line.
I'd be happy with a 13 MP 20D. I can live with the crop.