c-mount

A lens-to-camera connector with thread 1 inch (25mm) in diameter, 32 threads per inch, and with 7.526mm (0.69 in) distance from the camera s CCD to the rear mounting surface of the lens. Found in older versions of security cameras, with 17.5mm flange back distance, to achieve focus needs 5mm ring inserted between camera and lens.

c-mount

A screw mount type of lens, commonly used on smaller 16mm cameras, like the Bolex.

c-mount

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