Homemade pinholes are amateur hour. A user named Denis MO on a French photography forum has just posted pictures and some details about his homemade film SLR camera. Modeled partly on vintage Russian cameras, it’s a finder-less, bottom-loading, fully-functioning single-lens reflex camera. The maker estimates it took about 500 hours from start to finish, including all planning and fabrication. The underpinnings look a little crude, but with the green leatherette finish and a lens, the machine looks beautiful. You can see some of the blueprints, 3D models, and tools he used to make the camera here. Scroll a ways down to see a contact sheet and some images from the camera. He’s reportedly working on a rangefinder next.