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By: SecOptx
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Security & Machine Vision Optics
Contact us for lowest price (800) 284-2288, (858) 565-1101, sales@avsupply.com, or fax (858) 300-4193
8.5-51mm Vari-focal Lens
The SecOptx HVCS851M is a 8.5-51mm vari-focal lens.
8.5-51mm vari-focal lens
CS-Mount (Also available in C-Mount)
1/2" Format
Compatible with 1/2", 1/3" and 1/4" cameras
Vari-zoom allows for focus tracking throughout zoom range
Focal Length 8.5-51mm
Max. Relative Aperture 1:1.6
Iris F1.6~Close
Zoom Ratio 6X
Angular Field of View 1/2": 41.3° x 31.5° @ 8.5mm, 7.2° x 5.4° @ 51mm
1/3": 31.5° x 23.9° @ 8.5mm, 5.4° x 4.0° @ 51mm
1/4": 23.9° x 18.0° @ 8.5mm, 4.0° x 3.0° @ 51mm
Minimum Object Distance(M.O.D.) 0.8m (From Front Vertex)
Optical Back Focal Distance 15.89mm (In Air)
Flange Back 12.5mm
Operation Zoom Manual
Focus Manual
Iris Manual
Operation Temperature -10 - 50°C ( 14 - 122°F)
Filter Size 37.7mm P0.5
Mount CS-Mount
Size, Approx. Ø43.6 x 79.4mm / Ø1.7 x 3.1in.
Weight 120g, 4.3oz.
Notes C-Mount version = HVC851M



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Prices and specifications subject to change without notice.