By: Kowa
Security and Factory Automation Lenses
Contact us for lowest price (800) 284-2288, (858) 565-1101,, or fax (858) 300-4193
10x 9~90 Day & Night Infrared (IR) Lens

For applications requiring long range surveillance, the new KOWA Day & Night series LMVZ990A IR has the largest focal range of Day & Night Varifocal lens in the industry. This product was specifically designed for applications such as highway surveillance to read vehicle license plates traveling at a high rate of speed or for other long range monitoring needs.

Common in lenses in the broadcast industry, the 3-Cam Design is also incorporated in Kowa’s varifocal and zoom lenses. This innovative system has solved the problem of de-centering which sometimes occurs in the conventional pole system. Not only is the movement of the lens impaired by de-centering, but the optical performance suffers too. The 3-Cam Design also reduces internal reflection. As a result, the image obtained by this design is much sharper than that of the conventional pole system. With the LMVZ990AIR 3-Cam Design, the customer can expect higher optical performance and a longer service life.

Focal length (mm) 9~90mm
Zoom ratio 10x
Max. dia. ratio F1.8
Iris range F1.8-F360
Image size dia.8 4.8x6.4mm
Back focal length W 15.37mm T 11.71 mm in air
Flange focal length 17.526mm
Focus range W 0.3m T 1.0m
Field angle dia. W 30.3° T 3.1°
Field angle hor. W 41.1° T 4.2°
Field angle ver. W 52.6° T 5.2°
Field of view @ M.O.D. dia. W 183mm T 71mm
Field of view @ M.O.D. hor. W 253mm T 94mm
Field of view @ M.O.D. ver. W 334mm T 118mm
Lens construction 11 groups 12 elements
Clear aperture front dia. 38.6
Clear aperture rear dia. 11.8
Exit pupil position W -108mm T -218mm
Mount CS-Mount
Filter screw size M46X0.75
Distorition (TV) W -4.3% T 0.3%
Weight 200g


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Prices and specifications subject to change without notice.