This listing is for a vintage Zeiss Ikon film back with a built-in selenium light meter, specifically designed for use with the Contax IIa or IIIa 35mm film cameras. This accessory, often referred to as a "film magazine," provides a convenient and rapid way to switch film types or change rolls without needing to use a darkroom. The built-in light meter is a key feature of the Contax IIIa, but this accessory allows a Contax IIa user to add metering capability.

Technical Specifications:

• Film Type: 35mm roll film in reloadable cassettes.

• Compatibility: Designed exclusively for Zeiss Ikon Contax IIa and IIIa rangefinder cameras.

• Light Meter: Uncoupled, selenium-based exposure meter on a removable back, allowing for light readings to be taken separately. The meter has a dial for setting film speed (ASA/DIN).

• Year of Production: Likely from the 1950s, the same era as the Contax IIa/IIIa cameras.

• Construction: Features a metal and leatherette construction with dials for ASA and a selector for film type (negative).

Condition Report: This film back is in good used cosmetic condition, with a functional winding mechanism and clear markings. The leatherette is intact with some minor scuffs. The item comes with its original leather case, which shows signs of wear and age. Missing dark slide!