T2 adapter ring for connecting a M42x.75 screwdriver adapter (present eg in many telescopes, eyepiece or telescope lenses) to the body of the Olympus E.
If you plan to connect the body of an Olympus E: - with a telescope, pay attention to projection connectors (CLICK) - with a microscope, see microscope adapters with T2 thread (CLICK)
SEE OTHERS T2