Bolex H16 REX-2 16mm film camera. Here's some information about this camera: Model: Bolex H16 REX-2, a 16mm movie camera known for its reflex viewing system. Reflex Viewing: It features a reflex viewing system with a semi-reflecting prism, allowing through-the-lens framing and focusing. Features: The H16 REX-2 includes an adjustable diopter eyepiece, a rotating turret for three interchangeable C-mount lenses, and a built-in filter slot. Film Capacity: It uses 100ft (30m) or 50ft (15m) daylight loading spools of 16mm film. Motor: It is powered by a constant-speed, governor-controlled spring motor with a winding handle and an external drive shaft for attaching an electric motor.