controls focus in high vibration applications
                
                    This clamp slips over the lens's focus adjustment ring and uses a set-screw to lock it in place. It is used to maintain a fixed focus in applications where the lens is subjected to vibration and is suited for Cinegon, Xenoplan, and Tele-Xenar lenses in the NIR-corrected C-Mount family.    It is not used with ...
                
                
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