I think it's not a good assumption about the lens. This particular lens
has a pretty good weighted MTF score (3.6) on Photodo tests and
performance is relatively even across all focal lengths. Not up to the
50/1.4 but probably good enough for this test. And even if the 3200 dpi
scanner was only delivering 2400 dpi perfromance it should just about
equal the D30's resolution.
Chuck Norcutt
C.H.Ling wrote:
> Sorry, you didn't catch the point. The bottle neck is the scanner, it
> provide poor resolution for the film, how can we compare?
>
> For the 100-400 test, the lens could be the bottle neck, say for example it
> only provide 10lp/mm how can it use for test resolution of two recording
> media that has much better resolution than the lens (ok, it is just an
> assumption but they should use the 50/1.4 stop down to make the test like
> dpreview.)
>
> C.H.Ling
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