4×4型镜头板，用于Beseler 23C（及其他）照片放大机，39mm Leica镜头尺寸开口

4x4 Lens board for Beseler 23C (and other) photo enlargers. 39mm Leica lens size opening.

2023-03-26 15:49:57

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4×4型镜头板，用于Beseler 23C（及其他）照片放大机，39mm Leica镜头尺寸开口

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.

4×4型镜头板，用于Beseler 23C（及其他）照片放大机，39mm Leica镜头尺寸开口

朋友，你觉得上面这个模型，属于下面的哪个分类？