This adapter consists of a female M68 x 1 thread on one end and a male M54 x 0.75 thread on the other. Optical thickness of the adapter is 9mm.
This is very useful for connecting accessories such as filter drawers or filter wheels with a male M68 x 1 thread to accessories with female M54 x 0.75 threads.
|Connection side A
||Female M68 x 1
|Connection side B||Male M54 x 0.75