Specifications

Technical errors and omissions excepted. The pictures may not always represent the actual item delivered.Technical errors and omissions excepted. The pictures may not always represent the actual item delivered.
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Lenses
The picture quality of a CCTV system is primarily determined by the quality and coating of the lens. You can use
the best camera on the market, if the lens in front of the camera is of poor quality, the good performance and
sensitivity of the camera will be irrelevant. Different applications require different lens options and features.
Vicon offers a comprehensive range of varifocal lenses for any security application. For external applications
you should always use auto-iris lenses.
Varifocal Lenses with Manual Iris
Both focal length and iris are manually adjusted at the lens. To compensate
for changing light conditions, the camera must have an auto shutter function.
Varifocal Lenses with Auto-Iris (DC drive)
Varifocal lenses with DC drive iris use the video amplifier in the camera
to adjust the iris to the actual light conditions. The camera must have a
DC drive lens connector and a corresponding level potentiometer.
IR corrected Lenses with Auto-Iris (DC drive)
When used in combination with true day/night cameras IR corrected
lenses compensate for the focus shift of the IR cut filter when the camera
changes to Night mode. Normal lenses are optimised for the visible light
(up to 680 nm) whereas IR light goes well above 900 nm. The constant
focus function of the IR corrected lenses compensates for the extended
wave length of the captured light.
Megapixel Lenses with Auto-Iris (DC drive)
For optimal operating performance in combination with megapixel
IP cameras the lens must comply with particular requirements.
High-resolution pictures enable a reliable detection of even smallest picture
details. For such applications a wide range of megapixel lenses with auto-iris
(DC drive) is available.
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Lenses