Re: Negative Scanning/Source profiles
Re: Negative Scanning/Source profiles
- Subject: Re: Negative Scanning/Source profiles
- From: Andrew Rodney <email@hidden>
- Date: Sun, 11 Jul 2004 11:13:17 -0600
on 7/11/04 10:58 AM, Mike Eddington wrote:
>
I am aware that there is a negative version of the IT8, but I don't have it
>
and wouldn't have time to acquire it before starting (I'm also not sure that
>
it's supported by either Monaco Profiler or GM ProfileMaker..though it is for
>
Fuji ColourKit I believe).
The only product mentioned that I know supposedly supports this is
ColourKit. I've never made a profile for a color neg with it (the null
profile that ships with my Imacon does a good job of providing a preview and
numbers in the scanning software that reflects what I get after scanning the
file in Photoshop). I recall asking another ColourKit user how well this
worked and he said "just OK", so your mileage may vary.
The big problem with color neg's is there is no visual reference. What are
you trying to match? Unlike a chrome, you can, much like printing color
negs in a darkroom, produce any color appearance you wish (either with an
analog filter pack or by moving sliders in a scanning application). I've
heard some recommend making the image appear as you like in the scanning
software than assigning the display profile to the resulting scan. Others
scan the neg as a neg and inverse the image in Photoshop in high bit after
applying a fairly high bit working space to the data. I guess I've been
lucky in that the process Imacon uses works really well whereby you tell the
software to use a null profile made for scanning negs and then specify the
working space you wish to scan into. After the scan is complete and opened
in Photoshop, the color appearance and color numbers match what you saw in
the Imacon software. The question then becomes can your software work in
such a way and if so, how do you build this null profile? I think the first
question to answer is the one about the software you'll ultimately use to
drive the scanner and invert the image plus remove the orange mask.
Andrew Rodney
http://digitaldog.net/
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