This Leonardo 4x5 pinhole camera is robustly built out of plywood with two standard 1/4-20 mounting bushings for "landscape" and "portrait" use. The focal length is about 80mm (I think it was sold as 75mm) and it's around f/200. The simple shutter operates smoothly. A standard film holder (one included) is held in place by two camming bars on the back. In all the years I've had this, at least a dozen, I've used it precisely once. It's time it found a new home. $40 shipped in the US, PayPal G&S is fine.