P6 bayonet

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The P6 bayonet (also K6 bayonet ) is a lens connection that was developed in the early 1950s by VEB Kamera-Werke Niedersedlitz for the “ Praktisix ” medium format camera . It is not an official name, but a common name among users. The back focus is 74.1 mm.

P6 lens connection from a Pentacon Six

The bayonet is a so-called plug-in or clamp bayonet. First, the lenses are inserted in a fixed position into the camera-side part of the bayonet, which consists of a clamping ring. The position is defined by a notch on the camera side in the connection and a suitable screw on the lens-side end of the bayonet. The lens is locked in place by turning the clamping ring slightly. With this type of connection, the lens is therefore not rotated.

The cameras that use the P6 connector are

Both the Exakta 66 and the Kiev 90 , which are only built in very small numbers, have an extended, but downward-compatible P6 bayonet, which allows the electrical transmission of aperture information.

Lenses were offered by Pentacon , Carl Zeiss Jena , Meyer-Optik , Schneider-Kreuznach , Kiev and other companies.

The Dresden 35mm cameras of the brands Praktina , Pentina , Altix and Exakta mostly also have bayonet connections, which are not directly compatible due to the smaller focal length and the smaller image circle . However, adapters from P6 to many common lens connections are available.

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