3-D stuff is Dalia Miller . But do look around, there are many dealers around the country and world. You should also check Shutterbug . They are a national paper that specializes in classified ads for used camera equipment. Also, try the used equipment classified ads in the Photo Shopper.
Standard film is used.
The best mounts in terms of economy and value are the Cardboard Heat Seal mounts . All of the most popular models are of good quality, so the key is the features and layout that you prefer. The Busch Verascope F40 and Belplasca are also excellent, but take a non-standard format which you must always mount yourself. Matched pairs of 35 mm cameras may also be used in tandem . Polarizers have to be added to the front of the projection lenses, and a silver screen with polarized 3-D glasses must be used.