Description
BURGESS 4BR Microswitch, 4BR Series, SPDT, Screw, 10 A, 125 VAC Video Presenters 523QF Tripods features a standard 523QF Tripods features a standard 1 4" 20 threaded camera screw and a video alignment pin They are used to control the spread of the light and prevent unwanted light spill and they feature a filter holder