Topical Terminology > PRE-POSITION LENSES
PRE-POSITION LENSES
For PRE-POSITION LENSES we have a term and definition in CCTV.
PRE-POSITION LENSES (CCTV) 
Pre-position lenses are specially designed lenses with extra mechanical/electrical components to allow for computer interfacing. This function allows the lens (when used with the appropriate controller) to feedback to the controller information relevant to zoom and focus propositioning allowing the controller to quickly scan to a pre-selected scene, arriving in focus at the proper zoom point without operator intervention.
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