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  • CBC T4Z2813CS-IR Image #1

T4Z2813CS-IR (T4Z2813CSIR): CBC-Computar 1/3" 2.8-12mm f1.3 w/iris & focus, Day/Night IR (CS-Mount)

Quick Overview

1/3" 2.8-12mm f1.3 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 2.8 - 12mm
Max. Aperture Ratio 1:1.3 
Max. Image Format 4.8 x 3.6 mm (ø6 mm)
Operation Range Iris: F1.3 to F16C
Focus: 0.3m to infinity
Zoom: 2.8mm - 12mm
Control Iris: Manual
Focus/Zoom: Manual 
Angle Of View 1/3 type - 133.0 - 29.7°(D), 102.2 - 23.7° (H), 74.2 - 17.8° (V)   1/4 type - 95.0 - 22.3° (D), 74.2 - 17.8° (H), 54.7 - 13.3° (V)
Operating Temperature -10 to 50°C 
Effective Lens Aperture Front: ø23.0 mm
Rear: ø7.4 mm
Back Focal Length Tele: 19.2 mm
Wide: 7.2 mm 
Flange Back Length 12.5 mm
Mount CS-Mount
Filter Size -
Dimensions (W x H x D) ø40.7mm x 56.0mm
Weight 63g
No Video available
Computar T4Z2813CS-IR
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