This camera is the Polaroid SX-70 Land Camera Sonar OneStep, one of the most famous and finest classic instant cameras produced by Polaroid in the late 1970s (around 1978). Autofocus System: It features an autofocus system that works with sonar waves (the golden disc clamped at the top emits sound waves to measure the distance between the camera and the subject). Folding SLR Design: A fully foldable Single-Lens Reflex (SLR) camera, making it flat and easy to carry and store. Film Type: Uses Polaroid SX-70 instant films (which are available and currently sold by Polaroid). Price: 1300