Impossible 600 BW Film ROUND FRAME Pack 8 Shots Description. This pack of Impossible Project Instant Black White Film has a round frame producing a circular photo & is for Polaroid 600-type Cameras. It contains 8 sheets of instant black & white film each with a round glossy surface image area. Full development will occur Approx. 10 minutes after exposure when working in a temperature of around 70F 21C. The film pack has a built-in battery that powers the camera & its flash.