Thanks for the link Winsor - I'll try studying it
a little more tomorrow after I've had a good
nights sleep. Tonight I'm just not feeling up to
digesting footnotes like the following: :-)
"3. MTF is calculated by the MTFCurve2 program,
assuming the
<http://www.normankoren.com/Tutorials/MTF1A.html#Excellent_lens>excellent
lens and sharpening. For digital sensors, I
entered mtfcurve2 1e4 0 61 2 dscan sincpwr
s, where dscan = 1000/pixel spacing in µm
(pixels/mm); sincpwr = 3 for Bayer sensors with
anti-aliasing, 1.5 for Foveon X3 sensors; s =
sharpening, set so MTF at low spatial frequencies is about 0.7 of peak MTF. "
Later,
Johnny
At 09:55 PM 8/21/2006, Winsor Crosby wrote:
>And there is more to a good image than lpmm. Norman Koren uses
>information theory to analyze the situation and he finds that an 8MP
>Canon has 95 percent of the resolution of film and that an 11MP Canon
>exceeds it by a considerable amount.
>
>http://www.normankoren.com/Tutorials/MTF7.html
Johnny Johnson
Cleveland, GA
mailto:jjohnso4@xxxxxxxxxx
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