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Lens Mounts

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Lens Mounts

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  • Author: Kyle Firestone
There are many ways to interface a lens to a camera. Lenses and cameras have several standard mount types that feature either threads or a bayonet-type mount. A lens needs to not only be mechanically compatible with the mount type; it also must have the same flange distance as the camera. Flange distance or flange focal distance is the distance from the mounting shoulder to the image plane. The C-Mount standard is one of the most common lens mount types in machine vision. The C-Mount standard features a thread 1” in diameter with 32 threads per inch (TPI). The C-Mount flange distance is 17.526mm. It is ideal for many industrial applications, as the threaded mount provides a robust, controlled interface between the camera and lens.

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