Just noodling ideas here: as I have some 5*12" film arriving soon, and I don't have a lens that will cover that width, the thought of pinholes occurs to me - either a single central pinhole for a wide angle panorama, or two pinholes and a central divider to make a stereoscopic pair.

Knocking something up shouldn't be too difficult, but I'm looking for ideas to allow me to make multiple exposures. The obvious approach is to make some sort of film holder/dark slide combo and preload them, but any other other ideas?

Neil