I purchased a Hassie 500cm just before Christmas, and subsequently found a Hassie 100 Polaroid back for it. Over the last week, I have used the first pack of film, and I think I have become hooked. The fun of film, and the thrill of instant gratification is quite a lovely combination. But, as we all know, the Hassie only uses a small portion of the film. My question is, what kinds of cameras use this film in its entirety, and are they hard to come by? ETA: So after a bit of searching I see that the Polaroid Land Cameras 100/200/300/400 series cameras use '100' film. Are there any other brands, other than Polaroid?