Re: Scanner woes

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Ender100@aol.com
Date: 02/17/03-10:38:48 PM Z


Actually, if I understand what you are saying, the scans may be fine. In
Photoshop LEVELS, try sliding the left (black) slider to the right until it
is just where the data begins and see if the image doesn't improve.

There are two possibilities of what happened with the negatives when you
scanned them—one good and one not so good. If you "clipped" the dark levels
when you set the scanner software during preview, then you can't recover the
missing data—that's the bad news. If you just didn't adjust the levels dark
slider to the right to where the data started, then you are not in such bad
shape—especially if you were scanning in 16 bit.

I sometimes scan in 16 bit and leave the end sliders in the histogram of the
scanning software all the way to the left and right... at 0 and 255
respectively. Once in Photoshop, I still have plenty of data to do what I
want. Too often, people "clip" the data by using an "auto" command that
deletes a percentage of the dark and light end data. Makes for a bad scan.

You may have left the setting you had for slides in the scanning software for
the negatives and not adjusted to the different film.

Hope this helps,
Mark Nelson
In a message dated 2/17/03 11:01:06 PM, gruesomegrinch@hotmail.com writes:

<< Hello everyone,

I'm taking a workshop that includes preparing digital negatives to be
contact printed using a variety of alt processes. I'm starting from 35mm,
so I rented a Nikon Coolscan 4000 ED for a day, figuring I'd do a blitz on
my recent faves. I did slides, color negs and B&W negs.

Then I went to look at them in Photoshop. The slides were fine, but the
shots from the negs were not. Going into Levels, I found that the black end
of the histogram, from 0-23, was empty. Approx 10% of the tonal range was
missing.

Like I said, the slides were fine, but even so I phoned the rental joint;
they checked out the scanner and said it was fine. I took my negs and put
them under a densitometer; true black is definitely there. Conclusion:
somehow I screwed up the scans.

Does this ring a bell with anyone?

Thx, Michael >>


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