CCTV lenses can make your camera set up just perfect. Choosing the right lens is not easy, but learning how and why to pick certain lenses can be a rewarding strategy for maximum performance of your CCTV security and surveillance system.
You must learn and understand the basic CCTV lingo. For example: The Lens Focal Length is measured in mm, so the larger the number the narrower the angle of view. (e.g. 2.5mm is a wide angle of view and 16mm is a narrow angle of view.) Depth of Field on a lens is the distance within which objects in a picture are in focus. A large Depth of Field means almost all objects in the Field of View are in focus. Using a wide angle lens, a high F-stop, and an auto iris lens are things you can experiment with to get a greater depth of field. CCTV cameras come in different formats which determined the size of the CCD. The CCD of camera affects the angle of view.
Other CCTV terms:
We also carry the complete line of computar CCTV lenses. Please click on the link to access the computar website "Search for Computar Lens" and once you have found the lens you want, call us or contact us via e-mail with the model number of the lens so that we may provide you with a quote and further instructions.
