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  2. T-mount - Wikipedia

    en.wikipedia.org/wiki/T-mount

    An adapter ring has a female M42×0.75 metric thread on one side and a corresponding lens mount of the camera body on the other side. A T-adapter consists of an inner ring with T-mount thread and an external ring with corresponding lens mount. The T-ring and the T-2 ring are identical to each other. Both of them have the inner and outer ring.

  3. Lens adapter - Wikipedia

    en.wikipedia.org/wiki/Lens_Adapter

    This lens adapter is a passive adapter designed for mounting a Nikon F-mount lens to a Micro Four Thirds camera. Active lens adapter: Canon EF to Sony E. In photography and videography, a lens adapter is a device that enables the use of camera and lens combinations from otherwise incompatible systems. The most simple lens adapter designs ...

  4. Lens mount - Wikipedia

    en.wikipedia.org/wiki/Lens_mount

    A lens mount is an interface – mechanical and often also electrical – between a photographic camera body and a lens. It is a feature of camera systems where the body allows interchangeable lenses, most usually the rangefinder camera, single lens reflex type, single lens mirrorless type or any movie camera of 16 mm or higher gauge.

  5. Teleside converter - Wikipedia

    en.wikipedia.org/wiki/Teleside_converter

    A teleside converter lens attached in front of a camera. 2 - Camera lens 1 - Teleside converter. A teleside converter [1] (also known as a telephoto conversion lens or a front mount teleconverter) [2] is a secondary lens which is mounted on the front of a photographic lens to increase the effective focal length of the lens they are attached to.

  6. Canon RF lens mount - Wikipedia

    en.wikipedia.org/wiki/Canon_RF_lens_mount

    An EF-EOS R lens adapter enables Canon EF, EF-S, TS-E and MP-E lenses to be used on cameras that have the RF mount. [9] The three adapters have differing features: [10] Mount Adapter EF-EOS R; Control Ring Mount Adapter EF-EOS R – the Mount Adapter EF-EOS R with a lens control ring

  7. Four Thirds system - Wikipedia

    en.wikipedia.org/wiki/Four_Thirds_system

    Because the flange focal distance is shorter than those of legacy film SLR lens mounts, such as Canon FD, Canon EF, Nikon F, Olympus OM, and Pentax K, lenses for many other SLR types may be fitted to Four Thirds cameras using simple mechanical adapter rings. Such mechanical adapter rings typically require manual setting of focus and aperture. [23]