I have recently switched from 4x5 to 5x7, and have run into a bit of an impasse. I like to scan all of my negatives/chromes for cataloging and rudimentary printing, however the transparency adaptor on my flatbed scanner is not large enough to scan the full 5x7.
I am reluctant to purchase a new scanner, especially since the commercially available ones have transparency adaptors no larger than 4x5 inches, and would have to spend significantly more on a 5x7. I thought that if I could find the correct sort of light source I could simply place it on top of the scanner, sandwiching the 5x7 between the light source and the scanner?s glass. I notice that Calumet offers something of the sort for 4x5s for about $70.
Does anybody know what the correct type of light source is? I have tried normal fluorescents (flipping my light box over on top of the scanner), and have had poor results--the scanner picks up the ?flashing? or 'banding' which is invisible to our eyes. Using regular incandescent bulbs, even with diffusion, results in a nasty hot spot and weird color balance problems. Any other suggestions?
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