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Bow before the raw power of FOVEON
In message ,
DJ wrote: The *amount* of lowpass filtering required may arguable vary between Foveon and Bayer, but the need is still there. That would be one of the bigger benefits of full-RGB photosites, if it were done with a color-precise technology (which the Foveon isn't). There would be less battle with noise vs sharpening, as sharpening strength could be a little weaker at sub-pixel radii to get the same end result. Of course, by omitting AA filters completely (and microlenses, in the SD9), the Sigma DSLRs go too far, and end up with nonsense data. -- John P Sheehy |
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Bow before the raw power of FOVEON
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#3
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Bow before the raw power of FOVEON
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#4
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Bow before the raw power of FOVEON
In message ,
Tom Phillips wrote: wrote: In message , DJ wrote: The *amount* of lowpass filtering required may arguable vary between Foveon and Bayer, but the need is still there. That would be one of the bigger benefits of full-RGB photosites, if it were done with a color-precise technology (which the Foveon isn't). There would be less battle with noise vs sharpening, as sharpening strength could be a little weaker at sub-pixel radii to get the same end result. He's referring to the sampling limitations (Nyquist Theorem) inherent with *all* silicon sensors. The RGB filtering system makes no difference. It most certainy does. The Bayer CFA pattern requires more aggressive filtering than a stacked-RGB sensor or a monochrome sensor, to avoid color moire. -- John P Sheehy |
#6
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Bow before the raw power of FOVEON
DM wrote:
wrote in message news:400C013E.28623.92B77A9@localhost... http://www.foveon.com/X3_tech.html Please don't feed the troll, aka george preddy aka cameraguy More like "the ignorant one." Fred -- "...Linux, MS-DOS, and Windows XP (also known as the Good, the Bad, and the Ugly)." |
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