4x4 Lens board for Beseler 23C (and other) photo enlargers. 39mm Leica lens size opening.
thingiverse
This is a lens board for a Beseler 23C (and other) enlargers. The 4"x4" base fits many enlargers, and the opening is for a standard 39mm Leica screw mount. You will need a Beseler 39mm Threaded Lock Ring to securely attach your lens... A few notes 1) Depending on the material that you use, you may need to paint or further light-seal your board. I've attached a photo of what it looked like without painting it black. 2) There's a little bit of wiggle when the board is inserted into the enlarger. I'll experiment with getting it to fit more snugly in the future, but I'm using this design (effectively) in my darkroom right now.
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