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2. Tripod (photography) - Wikipedia

   en.wikipedia.org/wiki/Tripod_(photography)

   Per ISO 1222:2010, [1] the current tripod bolt thread standard for attaching the camera calls for a 1/4-20 UNC [2] or 3/8-16 UNC thread. [3] Most consumer cameras are fitted with 1/4-20 UNC threads. Larger, professional cameras and lenses may be fitted with 3/8-16 UNC threads, plus a removable 1/4-20 UNC adapter, allowing them to be mounted on ...

3. Tripod head - Wikipedia

   en.wikipedia.org/wiki/Tripod_head

   The actual connection between the two is often made with a screw. A common standard for base mounts on photographic tripod equipment is a 3/8-16 screw (a screw that is 3/8 inches in diameter, with 16 threads per inch) on the tripod legs, and a matching receptacle on the tripod head.

4. Screw - Wikipedia

   en.wikipedia.org/wiki/Screw

   Additionally, the standard photographic tripod thread, which for small cameras is 1/4" Whitworth (20 tpi) and for medium/large format cameras is 3/8" Whitworth (16 tpi). It is also used for microphone stands and their appropriate clips, again in both sizes, along with "thread adapters" to allow the smaller size to attach to items requiring the ...

5. M42 lens mount - Wikipedia

   en.wikipedia.org/wiki/M42_lens_mount

   The M42 lens mount is a screw thread mounting standard for attaching lenses to 35 mm cameras, primarily single-lens reflex models. It is more accurately known as the M42 × 1 mm standard, which means that it is a metric screw thread of 42 mm diameter and 1 mm thread pitch.

6. T-mount - Wikipedia

   en.wikipedia.org/wiki/T-mount

   The T-mount is a standard lens mount for cameras and other optical assemblies. The usual T-mount is a screw mount using a male 42×0.75 (42 mm diameter, 0.75 mm thread pitch) metric thread on the lens with a flange focal distance of 55 mm and a mating female 42mm thread on a camera adapter or other optical component.

7. Lens mount - Wikipedia

   en.wikipedia.org/wiki/Lens_mount

   Canon PowerShot A and Canon PowerShot G cameras have a built-in or non-interchangeable primary (zoom) lens, and Canon has "conversion tube" accessories available for some Canon PowerShot camera models which provide either a 52mm or 58mm "accessory/filter" screw thread. Canon's close-up, wide- (WC-DC), and tele-conversion (TC-DC) lenses have 2 ...