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2. Depth-of-field adapter - Wikipedia

   en.wikipedia.org/wiki/Depth-of-field_adapter

   The pricing of a DOF adapter unit also depends on the material and technologies used. For instance, a relay lens system must be added if the adapter is to be directly mounted to a camera's body (bypassing the standard lens, as if on a Canon XL1 or XL2 and the Sony EX3). Also, a prism system that is used on some adapters that correctly reorients ...

3. Lenses for SLR and DSLR cameras - Wikipedia

   en.wikipedia.org/wiki/Lenses_for_SLR_and_DSLR...

   A couple of later Minolta lenses do have a built-in ultrasonic focus motor (SSM lenses), like other SLR and DSLR systems (i.e. Canon and Nikon), where the AF computer is inside the camera body and there is a digital interface connecting body to an electric motor and the focusing gears built into the lens body.

4. Flange focal distance - Wikipedia

   en.wikipedia.org/wiki/Flange_focal_distance

   Diagram illustrating the flange focal length of an SLR–type and a mirrorless–type camera. For an interchangeable lens camera, the flange focal distance (FFD) (also known as the flange-to-film distance, flange focal depth, flange back distance (FBD), flange focal length (FFL), back focus [1] or register, depending on the usage and source) of a lens mount system is the distance from the ...

5. M42 lens mount - Wikipedia

   en.wikipedia.org/wiki/M42_lens_mount

   The adapter fits between the camera and the lens, making it possible to mate an M42 lens to a body with a different lens mount. M42 adapters work best on bodies with a flange depth less than or equal to the M42's flange depth, which includes the popular Canon EF-mount, the Pentax K-mount, the Minolta/Konica Minolta/Sony A-mount, the Sony E ...

6. Lens mount - Wikipedia

   en.wikipedia.org/wiki/Lens_mount

   completely interchangeable with earlier FD lenses Canon EF: 44.00 mm 35 mm: 54 mm [6] Bayonet Photography Canon EOS 35mm film SLR, Full Frame & APS-H DSLR Canon EF-S: 44.00 mm APS-C: 54 mm Bayonet Photography (Digital) Canon EOS APS-C DSLR Canon EF-M: 18 mm APS-C: 47 mm Bayonet Photography (Digital) Canon EOS M series Mirrorless APS-C Cameras ...

7. 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 ...