M42, Practika, and Pentax are the most common names for the mount. However many different camera manuafacturers used it.


Lorin Mackey wrote:
Gentlemen,
   I'm looking for a 200 or 300mm long focus lens for my Spotmatic SP. Is
there any other designation for the coupling other than "screw-thread" ?
Thank you
Lorin




-- graywolf http://graywolfphoto.com/graywolf.html




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