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I respectfully disagree - scanning inherently
results in unsharpness, which can be dealt with to some degree by initial
sharpening with Silverfast, Vuescan (which I use), or even in
Photoshop.
I follow the recommendations of Bruce Fraser as he
lays them out at
Maris
----- Original Message -----
Sent: Friday, October 26, 2001 12:01
AM
Subject: Re: filmscanners: Silverfast
Unsharp Mask
In a message dated
10/24/2001 12:00:46 PM Pacific Daylight Time, jdubikins@hotmail.com writes:
How are folks using Silverfast unsharp mask vis a vis Photoshop?
I'd like
to do some sharpening on the scan side but leave a little
final sharpening
to be done in PS. I don't know if this is a good
idea or not. In any case,
what looks fairly good to me in
Silverfast seems crude and unusable by PS
standards once the image is up
in PS. I've just tended to turn off USM in
Silverfast altogether.
Thanks for any suggestions.
Joel W.
Sharpen only in Photoshop and not at all in
Silverfast. As a general rule, sharpening shouldn't be done more than
once and it should be one of the last things done to an image. I usually
sharpen as the last step just before printing, and I save the image to a file
just before I do that sharpening. That way, I can later resize it if I
want another print of a different size, sharpen for that new size, and then
print. By saving an unsharpened image, I can always do more work with it
in Photoshop without violating the general rule I just gave you. Keep in
mind that a lot of things you do in Photoshop, including resizing, can mess up
the sharpening you did on it, so save sharpening for the last step.
For what it's worth, I believe it was Ian Lyons who told someone that
Silverfast had a good unsharp masking algorithm, much better than that in
Photoshop. My personal view is that they are probably equivalent, but
it's all irrelevant anyway since you should not be sharpening in Silverfast if
you are later going to work with the image in Photoshop. I assume the
reason that Silverfast even has a sharpening mode is that many Silverfast
users may want to go directly to press with a scanned image without using
Photoshop on it.
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