Another one on resolution (Bayer vs. Foveon) - AND or OR?

Started Dec 31, 2012 | Discussions thread
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Roland Karlsson Forum Pro • Posts: 24,872
Re: A Couple Points....
1

Lin Evans wrote:

The identical "aliasing" happens with CFA cameras having AA filters, they just blur the twists and you don't see the multiple railings above Nyquist, you see mush.

Calling that aliasing is misleading IMHO. Calling it mush also. Its simply unsharp.

techno-babble in the world can't make a 15 megapixel CFA sensor produce detail that is produced by the SD1 or DP Merril cameras.

If you define detail to include apparent detail from aliasing, then I agree. If you exclude the "false" detail, then otherwise.

It's not false detail at all until you get to the theoretical Nyquist limits. There is a very large area between the AA cut-off for the EOS 50D, for example and any "false detail" from the SD1. Within this area is very real detail, not false detail.

Dont forget that edges contain quite high frequencies.

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