The Hasselblad 500 series is a medium format 6x6 film system.The 503CX was produced from 1988-1994. This model was the first to introduce TTL-OTF flash system and the first model to use the Acute-Matte focus screen which is much brighter than the original. Also included in this kit is a 60mm f3.5 Distagon wide angle lens and a 150mm f4 Sonnar portrait lens. An A12 magazine which produces 12 6x6 images on 120 film comes with the camera.