<P> In 1972, integral film was introduced which did not require the user to time the development or peel apart the negative from the positive . This process was similar to Polacolor film with added timing and receiving layers . The film itself integrates all the layers to expose, develop, and fix the photo into a plastic envelope commonly associated with a Polaroid photo . The Polaroid SX - 70 camera was the first to utilize this film . </P> <P> Improvements in SX - 70 film led to the higher speed 600 series film, then to different formats such as 500 series (captiva), and spectra . </P> <P> The original cameras folded into the body and used bellows to protect the light path . The film was put on two spools, one with the negative roll, and one with the positive paper and reagent pods . The film developed inside the camera . The exception to this is the Polaroid Swinger, a hardbody rollfilm camera whose film was pulled out of the camera body to develop outside the camera . The film for rollfilm cameras was discontinued in 1992 . </P> <P> These cameras were developed after the rollfilm models and were designed to use the newly developed 100 series pack film . As with the Swinger the film sandwich was pulled out of the camera to develop outside of the camera, but instead of two separate rolls the film was built into a compact easy loading film pack which contained 8 exposures . Hard body plastic models were marketed later a low cost alternative to the more expensive models with bellows . </P>

What type of film does a polaroid land camera use