The difference between lens C interface and CS interface

According to the lens installation classification, all camera lenses are threaded. CCD camera lenses are installed with two industrial standards, namely C mount and CS mount. Both thread parts are the same, but the distance between the two from the lens to the photosensitive surface is different. C mount: The distance from the lens mounting reference plane to the focal point is 17.526mm. CS mount: special C installation, at this time, the gasket on the front of the camera should be removed before installing the lens. The distance from the lens mounting reference plane to the focal point is 12.5mm. If you want to mount a C mount lens to a CS mount camera, you need to use a lens converter.


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