About this 3D model

Toyo 45C view camera lens board for copal 0 shutter wide angle lenses. I recommend PETG or ABS. Never use PLA. That's outdated 1990's stuff. I painted the back of these boards with Black 3.0 (https://culturehustle.com/products/black-3-0-the-worlds-blackest-black-acrylic-paint-150ml) for additional light isolation. Use M3 screws and nylon lock nuts to attach the lens board and lens adapter together.