This adaptor has a male M68 thread with a male M48 thread on the opposite side for the connection of M48 accessories to the M68 system.
The adaptor has an optical path length of 5mm and has an inner diameter of 45mm with an outside diameter of 76mm.
|OPTICAL LENGTH (MM)
|INNER DIAMETER / CLEAR APERTURE (MM)
|OUTER CONNECTION (LENS SIDED)
||Thread, M68 x 1
|OUTER CONNECTION (EYEPIECE/-CAMERA-SIDED)
||Astro T-2, Baader Planetarium, Zeiss
|TYPE OF ADAPTER