Going through some of my lenses today, and I came across something I wasn't familiar with.
Anyone have any info on General Scientific process lenses? I've done a few searches and haven't come up with much. I found one reference to a Metra Scienar Apochromat in the same length and fstop, but I'm not sure that's the same lens.
What I have is a General Scientific Metra Scienar Process 24in f11 lens.
Any help is appreciated!
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