IR Varifocal Cctv Camera Varifocal lenses work by offering a gradual change in lens strength from the top of the lens to the bottom. Unlike bifocals, varifocal glasses have no specific area of lens strength, but progressive lens zones.The lack of a dividing line make varifocals more visually appealing and remove the need for multiple pairs of glasses.
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CCTV Camera comes with IR illuminators and Varifocal Lens called as IR Varifocal Camera.Varifocal Lens offering different focal lengths to cover the most frequently used angles of view. Changing the focal length allows the user to adjust coverage without moving the camera or changing the lens.This lens allows the user / installer to manually adjust the camera’s field of view. Because of their adjustability, Varifocal lenses are great when a camera will serve more than one purpose or to ensure proper focus without first determining an exact fixed lens focal length.Color cameras that switch to black and white at night are coupled with IR illuminators for night time surveillance, making them suitable for both day and night viewing.
VARIFOCAL LENS
The way to look through varifocals depends on what you want to look at. If you’re looking into the distance, you look through the top of the lens. As what you’re looking at gets closer, gradually move your eyes lower to keep the object in focus. For the best close-up focus, you need to look through the bottom of the lens.While you’re getting used to your varifocal glasses, you may encounter a few problems. These are all completely normal and disappear quickly, as you get used to using them.
Varifocal Vs Fixed Lens Security Camera
A fixed lens doesn’t let you adjust the focal length, angle of view, and level of zoom. Almost all fixed lens cameras have a wide angle. With a varifocal camera, you can adjust these things.
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