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The C-Mount 15.5-20.4mm Varifocal Lens from Computar is designed for use in close-up applications such as factory automation and image processing areas. It captures images in 8.8 x 6.6mm (Ø11mm) format, and it features manual zoom and iris control. The lens is compatible with 2/3" 1-1.5MP cameras and uses a C-mount for mounting to your camera.
Compatible with C-mount 1-1.5MP cameras with 2/3" sensors
3.3x macro zoom
Maximum light intensity, even in peripheral areas
Robust design with built-in locking mechanisms for focus and iris
Close proximity monitoring for use in close-up applications such as factory automation
In the Box
computar C-Mount 15.5-20.4mm Varifocal Lens
Limited 3-Year Warranty
Table of Contents
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0.3 to 1x
Maximum Aperture Ratio
Max: 8.8 x 6.6 mm (ø11 mm)
Iris: f/4.5 to 22C Focus: 3.54" (90 mm)
Iris / Focus / Zoom: Manual
Angle of View
14.88 to 2.84° (D), 11.80 to 2.78° (H), 8.74 to 2.24° (V)
-4 to 122°F (-20 to 50°C)
Effective Lens Aperture
Back Focal Length
0.3x tele 0.02% (y=5.5) 1x wide 1.78% (y=5.5)
Flange Back Length
0.69" (17.53 mm)
M34.0 P = 0.5 mm
Object Dimensions at M.O.D.
D: 1.44 to 0.42" (36.7 to 10.8 mm)
H: 1.15 to 0.34" (29.4 to 8.7 mm)
V: 0.87 to 0.25" (22.1 to 6.6 mm)