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DC Iris Varifocal CS Mount Lens

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Quoting product code: VW56L


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About this product


  • A lens for CCTV cameras with an electrically driven adjustable iris
  • Manually zoom and focus with the lens from wide to tele

Product overview

• A lens for CCTV cameras with an electrically driven adjustable iris
• Manually zoom and focus with the lens from wide to tele

Why would this lens be the right one for me?
This varifocal lens with DC (automatic) iris is perfect for those that want a lens for recording outside. The lens also allows you to manually zoom into an area of interest, causing the angle of view to be adjustable between 118 degrees to 44 degrees.

What is the lens used for?
When you have your CCTV camera recording outside the recorded image may be too bright when it is really sunny or too dark at night. This is due to the iris of the lens being unable to adjust the amount of light that enters into the camera, causing your picture to be unbalanced.

This automated iris camera lens will correct this problem. This is because the lens will automatically adjust the amount of light the camera receives, improving the white balance in the image. Making this camera lens ideal for when you want to record outside, where the light varies throughout the day.

How do I connect this to my CCTV camera?
To ensure that you can connect this lens with your camera, make sure the camera has a CS mount and has an automatic iris/four pin plug (both details can be found on the manual supplied with your camera). The details to how you install the lens may vary between cameras, so please follow the instructions provided with your camera.


Specification table
Sensor size 1/3 inch
Focal length 3 to 8 mm
Mount type CS
Iris DC iris
Maximum aperture F1.4
Angle of view 118.7° to 44.1°(D)/93.4° to 34.6°(H)/68.7° to 26.0°(V) for 1/3 inch sensor
Dimensions 38 mm (dia) x 57 mm
Weight 60 g

Can you answer me what is DC iris and how to use it?
Asked by: peter gugutkov
Simply by pluggin this product in to the direct drive control socket on the camera (your camera must have this, its a four pin square socket on most cameras) the iris is automatically adjusted. This gives vastly improved performance in variable light conditions.
Answered by: DR
Date published: 2015-07-17

am i right in saying that the zoom on this lens is manual adjustment
Asked by: roger
Yes, that's correct.
Answered by: DH
Date published: 2015-07-17
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