C60-5060A-C-MOUNT: Male C-Mount Camera Adapter for C60-TUBEs, Ø24 mm ID, Ø40 mm OD, manual adjustment 55-65 mm from focus

C60-EXT-F42: Female F42 threads used with C60-TUBE-C-RETAINER for repeatably removing/replacing parts without of set screws. (especially useful w/ C60-TUBE-B and TUBE-180L)