Put the film in a slide frame with glass and se if you have equal
sharpness from the middle to the corner. The problem are depth of field in
scanner and curved film in the film holder.. Sharp in the middle and
blurred out at the end and corner.
You can also decide the focus point manually in NikonScan 3.1 and Silverfast
Select the focus point 1/3 from the middle and out against the side or
corner. Now you have a more equal sharpness over the scanned picture.
>From: "Tomasz Zakrzewski" <firstname.lastname@example.org>
>Subject: filmscanners: Two questions
>Date: Thu, 5 Jul 2001 09:14:08 +0200
>1. Is there any possibility to modify the Nikon filmholders so that the
>from Nikon LS-4000ED become as sharp as those from Canon FS-4000SU
>(comparison at www.imaging-resource.com - fragments of the Musician scan)
>Nikon scans are obviously more blurred and I don't think it's the optics'
>2. Nikon LS-4000ED scans exhibit very much less noise than those from
>My question is: in real life, on print is the noise from any of those two
>scanner visible at all?
>Of course I can see the noise when playing with levels in PS but I don't
>know if I should worry about it or simply ignore it.
>If I were to choose between sharpness and noise levels I'd choose
>But I have to state once again that I don't wkon what's the effect and
>visibility of noise in real life pictures on photographic paper or from an
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