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[filmscanners] Re: The"Pepper Grain" problem

Hi Martin,

I'm not going to challenge what you are seeing, as you have enough
experience to know what you are looking at.  I recall your output print
size was like 12" x 18" or so, which does require more judicious
spotting prior to printing.  My own experience is that my scans require
very little spotting if I do a reasonable job in initial cleaning of the
film prior to scanning, with my S4000+, which uses the same lighting as
the SS4000.  I usually only see a few, up to a dozen spots, which take
me at most 5 minutes to correct.  I find that for 8x 12" prints, only
the most obvious dust or dirt shows up (in printing) after sharpening.

I'm also not noticing "pepper grain" with my SS4000+ scans, although I
see it on my Minolta Dual II scans.  I do see grain if I really sharpen
the SS4000+ scans, but that's emulsion grain, not the bubbles that Roger
is finding.


Martin Greene wrote:

> Roger
> I read your follow-up.  This certainly broadens the problem.  Since I use a
> Sprintcscan 4000 and therefore do not have the use of ICE, I guess I'll have
> to continue to spend an hour or so with the rubber stamp on each image.
> What a fate.
> Martin
>>Hi Martin,
>>If you scroll down to the end of the Nick Rains article you
>>will see my follow-up, including photomicrograph, in which I
>>attribute the 'pepper grain' to microscopic bubbles in the
>>scratch-resistant layer which protects the emulsion. I also have seen
>>the 'pepper grain' effect on every brand of film I have examined, not
>>just Fuji, and in both slides and negatives.
>>Roger Smith

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