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  • Computar H3Z4512CS-IR Image #1

H3Z4512CS-IR (H3Z4512CSIR): CBC-Computar 1/2" 4.5-12.5mm f1.2 w/iris & focus (CS-Mount)

Quick Overview

1/2" 4.5-12.5mm f1.2 Varifocal, Manual Iris (CS Mount) Day/Night IR

Computar Varifocal IR (infrared) manual iris lenses are designed for use with Day/Night cameras. They eliminate focus shift in night mode, especially in the presence of IR lighting. All lenses are CS-Mount, comprised of all glass optics, come with locking set screws and a durable metal barrel and mount, and are covered by a three year warranty.

Focal Length 4.5 - 12.5mm
Max. Aperture Ratio 1:1.2
Max. Image Format 6.4 x 4.8 mm (ø8 mm)
Operation Range Iris: F1.2 to F16C
Focus: 0.3m to infinity
Zoom: 4.5mm - 12.5mm
Control Iris: Manual
Focus/Zoom: Manual 
Object Dimension at M.O.D. 4.5mm: 53.7cm x 35.6cm  
12.5mm: 16.1cm x 12cm
Angle Of View 1/2 type - 108.0 - 37.6°(D), 83.7 - 30.1° (H), 61.3 - 22.6° (V)  1/3 type - 77.9 - 28.3° (D), 61.3 - 22.6° (H), 45.3 - 17.0° (V)  1/4 type - 57.2 - 21.2° (D), 45.3 - 17.0° (H), 33.7 - 12.7° (V)
Operating Temperature -20 to 50°C 
Effective Lens Aperture Front: ø19.9 mm
Rear: ø9.9 mm
Back Focal Length Tele: 16.5 mm
Wide: 8.5 mm 
Flange Back Length 12.5 mm
Mount CS-Mount
Filter Size M35.5 P=0.5mm
Dimensions (W x H x D) ø41.6mm x 48.8mm 
Weight 66g
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Computar H3Z4512CS-IR
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