In praise of AA filters

Started 9 months ago | Discussions thread
hjulenissen
Senior MemberPosts: 1,593
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Re: Pro AA filter users forget Sigma's Foveon sensor
In reply to Basalite, 9 months ago

Basalite wrote:

it needs to be emphasized that the Foveon sensors in Sigma's cameras do not need nor do they have such a filter

It needs to be emphasised that aliasing occurs for any sampling that is fed signal energy beyond the Nyquist frequency (after pre-filtering). This is true for Foveon-type as well as achromatic sensors.

Computer games are not rendered through a Bayer CFA. Still, anti-aliasing techniques are quite popular.

-k

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