An adapter ring (T2 Ring) enabling the connection of a photographic adapter with a T2 thread, i.e. M42x0.75 (present, for example, in many telescopes, telescope eyepieces or photographic lenses) to camera bodies with an M42x1 thread (Pentax S, Zenith and many others).
If you plan to connect the camera body: - with a telescope, pay attention to the projection connectors (CLICK) - with a microscope, see microscope adapters with T2 thread (CLICK)
SEE OTHER T2 RINGS
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