For easily mounting a collimating lens on a bread-board laboratory table, rail carriers and other bench plates, the Optical Post Mount (OPM) should be used. This device is an M6 threaded anodized aluminium assembly with a 3/8”-24 hole for mounting a COL-UV/VIS collimating lens. The OPM is 30mm in diameter with an internal post that is 6.5mm in diameter. The height of the focusing axis is 100mm.