There are at least two and maybe three different Bogen carrier styles for the 6x6 enlargers. Some are simple two part designs, others are a more complicated with three parts. And some other
"house rebrand" enlargers of that era used the same carriers. Spiratone, Testrite, early Vivitar, etc. are also possible sources. Smaller aperture carriers were also available. I bought several and cut them up to make inserts for M601 Durst (heresy, I know!). Bogen made a Mini635, 22a, and 22b, all 6x6 and all were slightly different. You will also need a 75mm lens, make it easy on yourself and get one with a Leica thread.
I've made negative carriers out of carboard/matte board, MDF (usually with a mask fashioned out of something else) and 3D printed. All approaches worked. The ergonomics differed a bit.
The challenge with 6x6 is that it tends to sag a bit. Consider glass at the bottom to prevent this. The other way is an effective tensioning system, but I never even tried DIY-ing such myself. For small(ish) prints, a decently made mask (top & bottom) will hold the film flat enough to not run into problems. For "critical sharpness", glass is the obvious solution.
What sort of glass? Just regular glass, a very thin piece, or would it have to be ANR?
Kent in SD
You only need ANR glass on the top side of a carrier, regular glass is fine for the bottom
Unless you scan TMAX films and Kodak color films. The emulsion on those is so smooth that you get newton rings on that side, too.
Plain window/picture frame glass (float glass) is fine. Just make sure you get a piece without any scratches or blemishes.
I'd try it with plain glass first and if this results in trouble, look out for AN glass.
Yes, I know. I meant "print", not scan. Newton rings happen when optical printing, too.Yes but this post is about enlarger carriers not film holders for scanners.
I now have a small Bogen 22A enlarger. It came with a 35mm carrier, which makes sense I suppose. I read that there was also a 6x6 carrier made. These are difficult to find! I shoot a Rolleiflex far more than I do 35mm, so I'd like to be able to make enlargements. How hard is it to make a 6x6 carrier from something like black foam core etc.?
Kent in SD
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