Polaroid SX-70 Alpha 1

When folded the SX-70 presents a slim appearance and hides the fact that it is a camera. Classed as a single lens reflex, the SX-70 holds a special place in history due to the unique film technology introduced with the camera. It produced instant colored prints without the use of a negative. The self contained print slowly appeared after it was automatically ejected from the camera after exposure. The camera was powered by a disposable flat battery pack which came hidden in the film pack. Although focusing was manual (to 10 1/2 in), the SX-70 utilized an automatic exposure control. The SX-70 became the first autofocus SLR in 1978 when it used sound waves (sonar) for calculating the distance from the camera to subject.

  • 1972 - 1977 Polaroid Corporation
  • Manual close focus lens
  • Automatic exposure control with manual adjustment for light and dark
  • SX-70 instant film -3 1/4 x 3 1/4 inch format