The LA EM 550DIR lens provides a telephoto zoom angle using a precise crafted vari-focal length 5mm to 50mm which gives great flexibility for your security installation. With the added feature of a DC auto-iris, this lens can automatically adjust for the perfect setting for your lighting conditions. Also, using the IR-corrected lens with the Day and Night Camera, it will give a sharp and well focused image for night time operations. The LA EM 550DIR provides a F1.4 bright aperture to help to get a better and cleaner picture quality.
When and Why to use an IR corrected lenses?
Use a day & night or monochrome cameras for the IR corrected lenses. Regular color cameras will not be affected by the IR corrected lens. When using the day/night or monochrome cameras, nearly any outdoor, as well as some indoor applications, will require, or at least benefit from using IR corrected lenses. This is because many natural light sources also contain infrared light, lighting changes with a higher infrared, lower infrared, or without infrared at all. When using ordinary lenses, the result is a blurred, or in a worst case scenario, a completely unfocused picture.
