We started sorting bricks out and after a couple of afternoons working on the camera obscura we managed to get some shots out of the thing. It was built using Lego pieces, duct tape, black cardboard and some glue. The camera shoots 6×6 and the “lens” sports a focal length of 150mm with an aperture of 1:300. All measurements approximate.
In the front there is the shutter and the pinhole. In the back, the gear on the left is the film advance. The white gear on the right has a clutched axis that prevents the film spool from moving freely. The “suspension” does not allow the film advance to turn backwards.