By: Kowa
Security and Factory Automation Lenses
Contact us for lowest price (800) 284-2288, (858) 565-1101,, or fax (858) 300-4193
1/3" 2.5~6mm Varifocal Manual Iris Lens

Common in lenses in the broadcast industry, the Kowa Varifocal Manual Iris Series LMVZ256 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 LMVZ256 3-Cam Design, the customer can expect higher optical performance and a longer service life.

Focal length f=2.5~6mm
Max. diameter (ratio) F=1:1.4~16~close
Picture Size 1/3" = 3.6x4.8mm
Vertical Angle 80.9~34.2°
Horizontal Angle 107.6~45.6°
Diameter Angle 133.33~56.8°
Distortion (TV) -19.4%~2.5%
Shooting range at minimum focus distance Ver. 364~131mm
Shooting range at minimum focus distance Hor. 584~179mm
Shooting range at minimum focus distance Dia. 995~230mm
Minimum focus distance 0.2m
Flange back 12.5mm in air
Back focus 8.72~14.24mm in air
Front/rear effective dia. front 27.6mm rear 7.4mm
Mount cs-mount
Exit pupil W18583~T-30mm
Temperature range -10~ 45°C
Storage temperature range -40~ 60°C
Resolution center/corner center 100 lp/mm corner 40 lp/mm
Stopper strength 10kgf/cm
Endurance tests F=5,000times Z=5,000times I=5,000times
Weight 83 g


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Prices and specifications subject to change without notice.