Gelling the light source for B&W scanning

Started 5 months ago | Discussions thread
OP MOD JimKasson Forum Pro • Posts: 40,729
With Rosco #247 minus green

JimKasson wrote:

JimKasson wrote:

With light sources anywhere near D50, when scanning B&W negatives or positives, the green raw channels saturates well before the red and blue ones. It occurred to me that gelling the light source might even this out, and give me a higher SNR in the scans. I've ordered a couple of Rosco Minus Green filters to experiment with.

Has anyone else tried this? If do, did it help?

Here's what a raw histo looks like with no gel.

Here's the histo with a Roscoe minus green filter.

The green and blue channels are well matched, and the red is improved.


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