Just a warning: Due to some really embarassing oversight, I forgot I had loaded a pack of Impossible Project Color 600 film into my Polaroid Impulse AF. I found out today when I accidentally fired off a shot while inspecting the camera - and got a "test frame" that didn't develop at all; instead, there was a leak on the back out of which the blue paste containing the chemicals leaked in major amounts. That's not only yukky, the stuff really sticks (to paper towels, to cloth/garments, to skin(!) ...) and smells unpleasant, to put it mildly. And needless to see, one of the really expensive frames was lost. But that's not all: The chemicals seem to sort of "dry out" - the paste's ability to flow is reduced, it even gets sort of brittle and isn't distributed fully (or evenly) when the container is squeezed by the rollers. Very vexing - thus, forgetting the film in the camera is definitely an expensive mistake to make, but it's also a serious risk of spoiling the camera! As things stand, I may loose the whole pack of film as well ... $16 I won't see again in a hurry. Bottomline: Put the film in only if you intend to use it instantly (or very soon), use it up and store the camera empty - I know it's the usual procedure, but in this case, it's mandatory. M.