Simply put, a varifocal lens is a lens that can zoom in and out. This means that you have the ability to manually set both the view angle and level of zoom. Varifocal vs. More Products. What We Offer.
Most surveillance camera systems these days are going to use fixed lens cameras, but you may have come across several varifocal lens. Varifocal vs Fixed Lens Security Cameras. What's the difference and when would I need varifocal lenses?
Part 1 - What's the difference? A fixed lens doesn't let. What is varifocal lens in security camera? Varifocal lens VS fixed lens, which is better? Read to see how varifocal camera is explained and its.
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Fixed Lens vs Varifocal Lens
More Products. What we mean by this is that many times people will mount a fixed lens camera, only to realize later that they want to change the angle of view.
Therefore, varifocal security cameras usually see a larger field of view, while surveillance cameras with fixed lenses only have a narrow viewing angle. Find a Distributor Become a Distributor.
Video: Fixed lens vs varifocal security Differences Between 2.8-12mm Varifocal Zoom and Motorized Zoom IP Camera - Remote Adjusting
In our Varifocal vs Fixed Lens survey varifocal lenses won out, but since that time the Get Notified of Video Surveillance Breaking News.
Identify at a Distance. Mounting Locations. By increasing the focal length the mm setting and magnifying an area, you reduce your viewing angle, as superimposing the 12mm image on top of the 4mm one easily shows.

Simply put, a varifocal lens is a lens that can zoom in and out. Skip to content. With greater distances, a wide angle view camera will lack the ability to identify faces. Compared with Fixed or Manual Iris lens, Auto Iris lens used more advanced technology, camera with an Auto Iris lens are often more expensive.
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Varifocal lenses allow fine-tuning to account for these differences, as well as customers simply changing their mind.
JavaScript seem to be disabled in your browser. Lens Motorized Varifocal : 2. A larger aperture means that you can zoom in closer and view images in more details, while a smaller aperture means that you can zoom out further to see a wider area. Furthermore, the lens is motorized, you can adjust the camera's focal length remotely through Internet browsers or Client software. It becomes necessary to use a higher millimeter lens when you are trying to identify a security threat that is further away. |
Security cameras fixed lens vs varifocal lens
A vari-focal camera provides consumers and security installers a few advantages over a. Fixed Lens vs Varifocal Lens.

There are two types of lens offered in security cameras: Fixed and Varifocal. Fixed lens are one size and cannot be changed.
Varifocal vs. Fixed Lens Integrator Preference
One of the most important considerations when choosing a security camera is verifying the Zoom Lens – Very similar to varifocal lenses, with two exceptions.
Comments : PRO Members only. Some varifocal lens cameras change focus automatically, reacting to the images and motion that are within their view.

Setting up a camera security system for my friend's parents, your P2p software look really good. How to get the best footage at night. IP camera adopts the P-Iris lenswhich allows camera to keep an accurate and consistent sharpness and depth of view. Monitor Important Areas. When you only have the budget to have have one camera in a room, only need one, and the room has 90 degree walls.
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There is a drawback to increasing the focal length, however. PTZs also have preset, patrol, and pattern options allowing you to quickly jump to pre-set views.
Need a wide angle view? When you are have a gate, door, or other known entrance point but can't mount a camera very close. The Lookout 2. Have a scenario where you need to zoom in on a gate or other access point? |
Allowing security installer to adjust security camera's focal length to change the field of view FoV is the obvious advantage of varifocal lens security camera. Camera specifications often list lens lengths but what do they mean?
However, cameras have multiple types of On the other end, a smaller focal length means that you will have a wider field of view FOV.