terraPinstax Wide Pinhole Camera Body

This project came to life when a friend requested that I design a pinhole camera body around an [instant film back, made by Lomography for the Belair Lomo camera](https://shop.lomography.com/en/belair-instant-back?). She wanted a wide angle of view, but otherwise gave me free rein. I settled on a 35mm "focal length", and after some math worked out that the aperture should be 0.26 mm in diameter. This gives a F Stop of f/136 in the middle, but shooting this at f/165 is a nice compromise between