I bought my first opaque projector thirty years ago. I only paid about eighty for it. Interestingly, I could now sell it for a tidy profit. I wont though. It allows me to steal from the best (after their dead and the copyright has expired too, of course). In fact, projectors have helped me so much I had three, until recently, when I sold one (remember that tidy profit thing, okay, I’d picked it up at a garage sale a year before).

I’ve used my little opaque projector to project a belt buckle onto paper, then transfer it to a window. It worked wonderfully.

A few years back I picked up a large, very high quality projector for five dollars, as a swap meet. It was an old school unit and the optics are remarkable. The go well beyond my little unit. I’d always wanted one, but at fifteen hundred or more, it wasn’t going to happen anytime soon for this hobbyist. So keep your eyes out (eBay, a wanted ad on craigslist, etc) if you want to open some very large doors.