The SX-70 is a folding single lens reflex Land Camera first produced by the Polaroid Corporation in 1972. It was the first instant SLR in history, and the first camera to use Polaroid's new integral print film, which developed automatically without the need for intervention from the photographer. This was revolutionary at the time, and a precursor to today's 600 and Spectra films.
The SX-70 Polasonic Autofocus is introduced in 1979 followed by the TimeZero SX-70 AutoFocus in 1981, again similar to previous releases Model 2's are also available with slightly different cosmetics at a lower price; distribution as Sears Special and Special Edition with similar characteristics to the previous models are also common. This camera design finished in 1982 with the Polaroid SLR 680 and the Polaroid SLR 690 from 1996 which uses 600 film and has electronic flash.