Re: 25 MP sensor of Sony
- From: Bryan Olson <fakeaddress@xxxxxxxxxxx>
- Date: Thu, 31 Jan 2008 02:34:56 -0800
David J Taylor wrote:
Alfred Molon wrote:ray says...
Since the sensor seems to be the same size as a 35mm frame, I would
assume that standard 35mm lenses should be adequate.
I have doubts about that. You'll likely need some high quality lens,
capable of corner to corner sharpness.
It may be better simply to omit the anti-alias filter, and rely on the sensor over-sampling the inherent resolution of the lens.
That makes some sense, but, near as I can tell, it turns into a
really hard optical problem. "Sharpness" and "resolution" do not
describe the same thing. Limited resolution is not a good
anti-alias filter.
There is a case for designing digital lenses differently from
traditional film-photography lenses. Geometric distortion is
correctable. Lateral chromatic aberration is mostly-correctable.
Lens design is largely a matter of trade-offs, and the move to
digital substantially changes the cost of many of the trade
items.
--
--Bryan
.
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- From: Alfred Molon
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- From: ray
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- From: Alfred Molon
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