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Powerdoc
Cat's Dreamlands
 
Join Date: May 2004
 
2006-11-09, 12:46

Quote:
Originally Posted by Moogs View Post
Show me the math. This sounds like something you read at the dpreview forums, which are notoriously bad for spreading half-truths and misinformation, because 80% of the people in there will say anything to make thsemselves feel better about a purchase they wish to make.

The specs on this sensor are very clear. Each R,G,B layer on the sensor captures 4.6 MP worth of data, and then green doesn't count double in the final interpolation AFAIK. This is a 4.6MP camera. The physical dimension of the image is not even 3000x2000, which is 6MP. You can't just believe the hype and say "oh it's at least as good as 8MP", because there's no physical property of the camera to back that up.

Now, maybe its 4.6MP files stand up to enlargement better than most cameras in its resolution range, and maybe you can safely enlarge up to the equivalent of 8MP without blurring or artifacting, but so too can you take a clean 8MP and enlarge up to 10 or 12 if you're careful in how you do it.

I'm sure the colors will be great but truthfully, there are 4 or 5 DSLRs out there right now that give you outstanding color when used properly. Good enough that most people will never be able to tell the difference. And ultimately, it's going to be the printer and paper, not the sensor that determines how much people like the final output.
Resolution wise the latest foveon equal to a 8 mpixels camera for several reason.
No resolution loss due to moire filter
No resolution loss due to interpolation of the Bayer matrix, who create artifacts and other cons

This have been backed up by many reviews, and not only DP review.

Never forget that the number of pixels is not the maximum resolution of a camera. My canon 20 D has far more resolution than my coolpix P3, dispite the fact, that both have the same number of pixels.
Pixels are not everything. Resolution is more important.

PS : I don't have any foveon camera, so I don't care.
Personnaly I think that the major cons of the sigma cameras are :
- sigma mounting lenses
- high iso noise (very high)
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