Impossible PRD3108 Black and White Film for Polaroid Sx-70 Cameras (Silver) 8 exposures per pack Black an white instant film for Polaroid SX-70-type cameras with silver frames Development: 10 minutes approximately at 70 (21 ) Image area: 3.1 x 3.1 in (7.9 x 7.9 cm) Finish: Glossy