I acquired one of these. To me the gg/fresnel set up looks off, even though the original Calumet purchaser swears he never altered it. As it stands now, facing the photograph is a clear piece of cover glass. Underneath that (facing the inside of the camera) is a gg/fresnel of plastic, with the grooves facing to the rear toward the photographer. The plastic washers that are supposed to hold all of this is look backwards to me too, with the grooves facing away from the gg. (I didn't explain that well, see photo.) With the exception of the Graflok back, I'm used to seeing the Fresnel grooves facing forward.
If you're familiar with the way this is supposed to be, let me know. Otherwise I'll shoot film through it to try and figure it out.
Thanks in advance for your help.
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