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Dorian Gray
Veteran Member
 
Join Date: May 2005
Location: Paris, France
 
2006-11-08, 15:25

NosferaDrew, great angle of your timeless beauty! The lens flare reduces the overall contrast nicely and compliments the old-timer aesthetic, but did you add that in PS? You could also do without the JPEG artefacts, particularly severe in the car's shadow.

Moogs, the colour resolution of a Bayer filter type sensor is much lower than the pixel count suggests, because of two main factors: the image must be heavily interpolated (i.e. made up) by a demosaicing process, and the resulting artefacts must be minimised by a strong anti-aliasing filter, which reduces sharpness. The result is that a 4.6 MP Foveon type sensor may well have colour resolution equal to the 10 MP Nikon D200, and with fewer artefacts, although strict black and white spatial resolution will still be higher on the Nikon. If anything, it is the cameras fitted with Bayer type sensors that are most reliant on "marketing hype". Besides, 4.6 MP true resolution is high enough for nearly everyone not making poster-size prints. People with 5 MP digicams who complain about poor sharpness don't realise that it's the lens, not the megapixel count, which is limiting the sharpness. One could put 100 megapixels behind a bad lens (i.e. any small zoom) and the result will still be blurred (and as Powerdoc notes, the image will also suffer from very bad noise).

That said, the Nikon D200 - a truly great DSLR - is likely a far better camera than the Sigmas for other reasons.

… engrossed in such factional acts as dreaming different dreams.
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