What Does Security Camera Resolution Mean?
Resolution refers to how detailed a picture the camera can see. The measurement to look for is horizontal TV lines (TVL). A normal CCTV picture is around 350 to 400 TVL, with high resolution getting up to 480 or 500. Upgrading a camera's resolution can cost as little as $50.
Read more below....
Read more below....
Security Camera Resolution Specs
Resolution of CamerasResolution refers to how detailed a picture the camera can see. The measurement to look for is horizontal TV lines (TVL). A normal CCTV picture is around 350 to 400 TVL, with high resolution getting up to 480 or 500. Upgrading a camera's resolution can cost as little as $50.
Note: do not be impressed by pixel measurements in the hundreds of thousands. TVL is a more consistent measurement.
Other specs:
Signal to noise ratio (s/n) indicates how much "signal," or actual picture information, the camera transmits, as opposed to "noise," which comes across as static. A s/n ratio of 40db indicates that the signal is 100 times the noise, which results in an acceptable picture with some fine grain or snow. 30db results in a poor picture, and 60db produces an excellent picture with no static visible. Keep in mind that noise can be introduced by other components in addition to the camera.
Sensitivity to light is measured in lux. A sensitivity of 2 lux means the camera can see fairly well by the light of a 40W fluorescent bulb; 0.5 lux surveillance cameras can make out images outside on a dim night. Your needs will depend on the lighting in the area being filmed, but lux ratings should not be the most important aspect of your camera decision.
Surveillance Camera Examples of Uses
Surveillance Cameras capture it all.
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CCTV Surveillance Monitors
First, make sure to purchase a monitor specially to handle the type of use it will receive. Televisions are not good monitors, since TVs are built to be on for a few hours per day, not the 8 to 24 hours per day surveillance monitors endure. In some cases, computer monitors do make acceptable substitutes. Flat-panel LCD screens make great CCTV monitors for larger systems because they take up little space, have excellent resolution, and generate less heat than regular monitors.
- Surveillance Monitors Tips
- Flat-panel LCD screens make great CCTV monitors.
Security Surveillance Camera Installation
- Installation Security Camera Systems Southern Cal
- Questions to Ask To Determine Security Camera Requirements.
- Los Angeles Security Camera, Los Angeles Closed Circuit TV, Surveillance Cameras
- LosAngelesCCTV.com is a Los Angeles CCTV Contractor servicing commercial clients throughout the Los Angeles Area. Our services include but are not limited to: Network Cabling Infrastructure Design, Installation & Certification, Data Cabling, Voice Wiring, Audio/Video Cable, Fiber Optic Cabling.
- Southern Cal Security Camera, Southern Cal Closed Circuit TV, Surveillance Cameras
- SouthernCalCCTV.com is a Southern Cal CCTV Contractor servicing commercial clients throughout the Southern Cal Area. Our services include but are not limited to: Network Cabling Infrastructure Design, Installation & Certification, Data Cabling, Voice Wiring, Audio/Video Cable, Fiber Optic Cabling.
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- SanDiegoCCTVExpert.com is a San Diego CCTV Contractor servicing commercial clients throughout the San Diego Area. Our services include but are not limited to: Network Cabling Infrastructure Design, Installation & Certification, Data Cabling, Voice Wiring, Audio/Video Cable, Fiber Optic Cabling.
- Orange County Security Camera, Orange County Closed Circuit TV, Surveillance Cameras
- OrangeCountyCCTV.com is a Orange County CCTV Contractor servicing commercial clients throughout the Orange County Area. Our services include but are not limited to: Network Cabling Infrastructure Design, Installation & Certification, Data Cabling, Voice Wiring, Audio/Video Cable, Fiber Optic Cabling.
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