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[OM] Interesting post on scanning negatives

Subject: [OM] Interesting post on scanning negatives
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Mon, 03 Dec 2012 11:49:51 -0500
I discovered this post on the Epson scanner mail group this morning and 
thought some of you might find it useful.

"Here is a workflow for scanning color negatives that has been suggested 
on the drum scanner group and works very well. Scan the negative as a 
positive (not inverting), and select an area that includes the blank 
area at the edge of the film (which has the orange mask). Don't let the 
scanner adjust any levels or correct the color; just have the scanner 
driver run the motor and lamp of the scanner without any processing 
whatsoever, except resolution and bit depth. Open the photo in 
Photoshop, select the eyedropper tool and sample the blank (orange mask) 
area. Then go to layers/new fill layer and select solid color. In the 
mode dialog box select difference. (This will serve to invert the image 
and cancel out the orange mask). Now flatten the layer and set the 
levels. This is done by going to curves (command-M on a mac) bringing up 
the dialog box. Where it says RGB, select one color at a time and move 
the slider while holding down the command and option keys
(on a mac, for PC its the two keys just left of the shift bar). Once the 
levels are set you are pretty close to having good color, one easy way 
to fine-tune the result is to open the curves adjustment again and use 
the grey eyedropper and select a part of the image that should be grey. 
At this point the result will be overly saturated, I usually reduce 
saturation by -40. This is the best way that I know to get a publication 
quality result of a negative scan. "

Chuck Norcutt
-- 
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