PR10 (PR144)

PR10 was the integral instant film that Kodak introduced in 1976 together with its first instant cameras, the EK4 and EK6. While Polaroid's SX-70 film is exposed from the front and requires a mirror to invert the image, Kodak's film was exposed through the back of the picture unit, thus making it unnecessary to have a mirror and causing the dyes to move forward in order to produce the image. The prints produced had a rectangular image rather than the square one characteristic of Polaroid's film, and Kodak promoted a textured Satinluxe surface finish. The film had a speed rating of about ISO 150 to 160 and was later retitled PR144-10. It was used in the EK series, Handle, Colorburst, and Pleaser cameras right through the end of the 1970s and into the early 1980s. Polaroid brought a patent infringement action on April 26, 1976, a few days after the film's launch. The court decided against Kodak in October 1985, and an injunction which came into effect on January 9, 1986, brought an end to Kodak's instant cameras and film. The film has not been manufactured since.