Graeme_Nattress said:You basically trade resolution for the colours being on top of each other. Not a good trade when bayer pattern single chips are much much higher resolution and cheaper.
Graeme
I had a Canon 10D 6 megpixels (Bayer pattern) and now own two Sigma SD9's 3.4 megapixels (Foveon).
The Sigma's are slightly sharper than the Canon, even though the "pixel count" is lower. Each Sigma pixel is capable of reading a different color by itself, while the Bayer needs to interpolate colors from neighbouring pixels.
Pixel for pixel, Foveon is better than Bayer by far, but Bayer pixel count has been skyrocketting in the past year or so to around 12 to 16 megapixels, while Foveon is still stuck at 3.4 megapixels.
Unless Foveon increases their pixel count, they're pretty well sunk.
From what I've seen:
Foveon looks more film-like, with more latitude (less highlight blowouts), while Bayer tends to make people look plasticky and smooth (perhaps because of interpolation).
The big weakness for me is that I can't shoot the Sigma Foveon with iso higher than 100, or the picture gets really noisy. 400 iso looks terrible. I understand the SD9's successor, the SD10 has improved the sensitivities by using microlenses.
The Canon 10D, on the other hand, has super clean noise free pics. I've shot dimly lit pool tournaments at 1600 iso with great success. The newest Canon 5D is even better.
While I love my foveon cameras, I don't think the Foveon chip will work well as a video sensor.... because of low light issues.
Hopefully the Mysterium chip will successfully combine the positive atttributes of Bayer and Foveon, though I suspect the Mysterium chip is really a Bayer, which is cheaper to make.
Go Jim Go!!! Red will be my next purchase... after my hvx200.:laugh: :laugh: