When you want the latest technology in your video surveillance system you can't beat the clarity and precision of the Varifocal lens. These lenses are used in everything from home security systems to spy cams and other surveillance cameras. These lenses offer a variety of focal lengths and iris types. You will find them with manual and auto irises as well as Direct Drive Iris models. The important thing to consider is to find the lens that meets your security needs at a price that fits your budget.

Let's take a moment to discuss the different Iris types available in the Varifocal lens. The manual lens is ideal for indoor applications where light is constantly changing. This allows you to adjust the Iris to match many different light conditions. The Direct Drive Iris type is often used in outdoor applications. In this style, the camera's aperture is controlled by the internal circuits within the camera. The auto Iris is similar to the Direct Drive model, but the Iris is controlled by the lens rather than the camera's circuitry. This type is used in both indoor and outdoor applications.

Finding Manufacturers of the Varifocal Lens

Several different manufacturers make a version of the Varifocal Lens. The key to this type of lens, is the ability to adjust the Iris to maximize the quality of the picture transmitted. Cameras equipped with this type of lens can be mounted anywhere you want to install them. This is because they are not limited by the light available at any given time.