Wizen M-616 film DX , 35mm compact camera with Auto winding & rewinding built in flash, CDS (Correlated double sampling), focus free glass Lens Made in Japan 1: 3.5 35mm. It has a 24 x 36 with a CDS cell for light measurement, DX coding for adjustment, automatic film sensitivity, a motor to advance the film and rewind it and an infrared system to focus.