ZOOM LENSES - T34Z5518DC-CS (DC Iris),

Computar, the world's largest producer of CCTV Lenses, provides over 200 state-of-the-art lens products , covering fixed focal and varifocal lenses in both manual and auto iris configurations, manual and motorized zoom lenses, and high-speed aspherical lenses. Computar Lenses are employed extensively in high-security applications such as airports, banks, casinos and government buildings.  
  

 

T34Z5518DC-CS (DC Iris),
5.5-187mm Motorized Zoom w/DC Auto Iris (CS Mount)