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- Q2383430 subject Q6147958.
- Q2383430 subject Q8587295.
- Q2383430 abstract "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. This thread form is referred to as T-thread. (This should not be confused with the M42 lens mount which is also 42 mm diameter, but has a 1 mm thread pitch.)The "T" is said to stand for Tamron or Taisei, a Japanese manufacturer that released in 1957 the first of a line of aftermarket camera lenses that fit 35 mm SLR cameras built by various manufacturers using their universal T-mount. On the first model, the mini T-mount used a M37×0.75 thread; Tamron’s canonical M42×0.75 T-thread didn’t appear on the market until about 1962. The company referred to it variously as a T-mount, T-thread, T-adapter, or a T-400, but not as a T-2, which is simply the name that Soligor used for its version of the T-adapter. The proprietary lens mount of each camera manufacturer was adapted to the T-mount thread with a simple adapter. Thus a retailer could stock a small number of expensive lenses that would fit a large number of camera brands using a selection of inexpensive adapters.Some T-mount lenses accept a T-adapter that lacks its threaded inner ring, and simply slides onto the T-mount lens. It is secured only by 3 set screws that match a channel on the lens barrel, such that the barrel is not deformed by the set screws and the adapter can therefore be removed with no damage.As a common mechanical interface, the T-mount allows components of various manufacturers to be interchanged and assembled. The T-mount is a solely mechanical specification. Electrical or mechanical connections (such as for autofocus) are generally not provided, although Sigma’s YS Mount featured an automatic diaphragm coupling.Besides cameras, T-mounts are used in optical breadboard prototyping components as well as telescope and microscope attachments. The T-mount is also a standard way to mount a camera to a microscope to photograph pathological specimen slides or to a 1.25″ telescope eyepiece.".
- Q2383430 wikiPageExternalLink micad.htm.
- Q2383430 wikiPageWikiLink Q1063852.
- Q2383430 wikiPageWikiLink Q1189460.
- Q2383430 wikiPageWikiLink Q13637970.
- Q2383430 wikiPageWikiLink Q1365051.
- Q2383430 wikiPageWikiLink Q1485994.
- Q2383430 wikiPageWikiLink Q196538.
- Q2383430 wikiPageWikiLink Q20181008.
- Q2383430 wikiPageWikiLink Q209607.
- Q2383430 wikiPageWikiLink Q209849.
- Q2383430 wikiPageWikiLink Q209871.
- Q2383430 wikiPageWikiLink Q210008.
- Q2383430 wikiPageWikiLink Q325639.
- Q2383430 wikiPageWikiLink Q354764.
- Q2383430 wikiPageWikiLink Q389798.
- Q2383430 wikiPageWikiLink Q4213.
- Q2383430 wikiPageWikiLink Q4331812.
- Q2383430 wikiPageWikiLink Q6147958.
- Q2383430 wikiPageWikiLink Q8587295.
- Q2383430 comment "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. This thread form is referred to as T-thread.".
- Q2383430 label "T-mount".