I don't do them, and I don't shoot polaroid film at all, but ..... If I were going to do that, I would take a pack film camera and remove the polaroid auto exposure lens. Then I would graft an antique or a view camera lens to it. Then I would have a heck of a polaroid camera. One that for just a few bucks would give me great control for back light and even indoor with a tripod. The ones with the metal frames had tripod threads so you could do your own time exposures. The camera would look like the one in the top right corner.