Security cameras have different lens types with distinct advantages and uses. Here are some short definitions plus some pros and cons to each type:
Security Cameras With Varifocal Lens (Zoom Lens)
Security cameras featuring varifocal lens will allow the focal length of the lens to varied. This feature is most commonly called a “zoom” lens. Security cameras with zoom lenses or varifocal lenses should come with an auto iris feature (an electrically controlled iris) to be truly useful.
- A zoom lens you monitor larger outdoor areas with one camera. The combination of auto iris and varifocal means you can monitor a large area and selectively zoom in only when motion is detected.
- A zoom lens security camera lets you easily adjust and optimize for available light conditions
- Security cameras with zoom lenses are especially applicable in locations such as outside a main door or gates, outside parking lot, or other situations where the lighting conditions continuously change
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$99.95
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$129.95
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Security Cameras With Fixed Lens
Security cameras with fixed focal length lenses cannot zoom its focus is fixed. Fixed lens security cameras are a good low-cost solution in certain circumstances. A security camera with a fixed focal length lens generally allows more light to pass through the lens at a given focal length than a varifocal, or zoom lens. This can be important in low-light situations to avoid blurred video that is useless.
- Security cameras with fixed lenses allow fast action-stopping shutter speeds to be used in low-light situations. Fixed focal length lenses are sometimes the only solution for night-time video
- Security cameras with fixed lenses are best suited for fixed lighting conditions (indoors) such as shopping centers, schools, libraries, and offices
- Video from fixed lens security cameras is usually sharper than their zoom counterparts
- Security cameras with fixed focal length lenses are usually less expensive than their zoom counterparts
$99.95
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$69.95
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