High resolution lenses for machine vision — standard and custom lens design
CCTV Lens Descriptions For Your Security Camera
High Resolution Lenses for machine vision, instrumentation, inspection and vibration-sensitive applications. Standard and custom hi-res lens assemblies.
CCTV Lens
When equipping your facility with a C/CS mount security camera, you will also need to decide the kind of CCTV lens will work best for the type of area you’re putting under surveillance. Many individuals who are looking for security cameras understand they need a camera and a lens but knowing that you need a lens and knowing the type of lens you need are separate entities. Universe Optics is a supplier of various types of CCTV lenses to suit all security needs.
Here is a brief primer on lenses and lens terminology.
Fixed focal or varifocal: Will you need a fixed focal length lens or a varifocal lens? A fixed focal lens provides, just what the name says, a fixed lens range whereas a varifocal lens offers versatility in lens length. The varifocal lens lets allows for narrow or wide-angle viewing.
Focal length: The focal length of your CCTV camera lens is basically, the length at which it extends and the view it encompasses. The longer the focal length, the more narrow the field of view (FOV), the smaller the focal length, the wider the angle of view will be.
Zoom type: If the CCTV lens you’re purchasing has zoom capabilities, this means you’re working with a varifocal lens. You will also need to understand though that with a this type of lens you can either have one that adjusts manually or provides electronic zoom capabilities. Electronic zoom will adjust itself to the motion in the vicinity.
F-stop: As with a typical hand-held camera, the F-stop on your CCTV lens is the rating that shows how well your camera will work in low light situations. The lower the F-stop the better it works in low light.
Mounting options: When looking for a CCTV camera, you need to know up front where and how you will mount the camera. Knowing where the camera will be mounted and in what kind of situation, middle of a ceiling or in a corner, for example, may limit the type of camera unit you will be able to utilize.
Being armed with this information will make you a more informed consumer when looking to enhance the security of your workplace.