I recently got two brand-new, new-style 8x10 film holders for only $30 each. I'm not sure what to do with them since I don't have, nor can I feed and care for, an 8x10 camera. I figure I can make an 8x10 pinhole that uses the film holders, but that's pretty expensive for a pinhole camera (I have opinions on how much one should spend on a pinhole camera). I also already have a single-shot 8x10 pinhole camera.
I figure I can make a fixed-focus box camera, with a lens set to be hyperfocal at some f/16 or something. The problem is getting a lens that will cover 8x10. It needs to be cheap (like sub-$50, preferably sub-$5) or it will bust the budget and I'd rather just sell the film holders. I was looking on Surplus shed for cheap $10 ish lenses but I can never tell if they will cover the format or not. I could try using some of the loose double-convex lenses I have around here but have the same issue with them