(Date May 2008). 4 to 9mm Adjustable, Built-In Auto Iris Lens.

Manufacturer: GVI Security. Iris Type: Manual Iris. 1x Pre-owned, Tested, Varifocal Lens 3.5-8mm. Lens Specification Lens Aperture f/1.4. We're unable to test other feature and we have limited technical knowledge.

Manufacturer: GVI Security. Iris Type: Manual Iris. 1x Pre-owned, Tested, Varifocal Lens 3.5-8mm. Lens Specification Lens Aperture f/1.4. We're unable to test other feature and we have limited technical knowledge.