[filmscanners] Re: Scanner image adjustments vs. Photoshop

["" <Bobgoldstein@aol.com>]

Thanks for the cogent and helpful answer!  It leads me to the question:
which of Photoshops 8-bit tools (ie the ones that are greyed out when the
image is a 16-bit image) are present in my scanning software? It would
seem that if I want to use any of those, then they should be employed in
the scanning software, which is 12-bit in my case.  Are there any major
ones that come to mind?

On 3/29/02 4:01 AM, filmscanners@halftone.co.uk said:

>From:  michael@shaffer.net (michael shaffer)
>Sender:    filmscanners_owner@halftone.co.uk
>Reply-to:  filmscanners@halftone.co.uk
>To:    bobgoldstein@aol.com
>Bob writes ...
>
>> What are the pro's and con's of making image adjustments in Vuescan or
>> Silverfast versus making them later in Photoshop, using a raw scan?
>
>  The pro's are the adjustments are made with higher bit-depth precision
>(e.g., highbits, 10bit, 12, 14, 16) before converting to 8bit.  If however,
>you scan directly to highbit and work with PS's highbit tools, then there
>are no pro's.  That is, most people prefer the tools' interfaces provided by
>PS over the scanning software ... the only exception being Silverfast.
>
>> I have the impression that using a brightness adjustment on a preview
>> scan results in a physically different exposure for the final scan,
>> obviously something that can't be done later in the workflow.  But for
>> all the other image characteristics, can one make adjustments just as
>> well in Photoshop?
>
>  The Vuescan 'brightness' adjustment does not adjust 'exposure'.  Note, you
>can lock the exposure and still adjust brightness.  All adjustments are made
>just as well in PS ... although PS doesn't have a tool for getting the
>'white balance' correct (i.e., not unless you have something "absolutely
>white" or "absolutely neutral" in the image.
>
>> I am using an SS4000, sometimes with Vuescan, sometimes with Polacolor
>> insight 5.5, but always followed by tinkering in Photoshop before
>> printing.
>
>  If you always tinker with PS, then don't spend too much time getting it
>right with the scanner software ... use them for getting the color balance
>in the ballpark only.
>
>my C$0.02 & cheerios ... shAf  :o)
>Avalon Peninsula, Newfoundland
>www.micro-investigations.com (in progress)
>
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