by Raymond Shadman, President Custom Video Security email: [email protected] phone: 1-877-DEALS-79 x101 skype: rshadman There are a lot of people who are looking to get better image quality on the video security cameras for their homes or businesses. It is my job to keep up with fast past of new video security technologies, and to educate low-voltage installers, IT professionals, and consumers on the various types of video surveillance which are currently on the market. Before reading this post, one should educate himself/herself with a little background on how resolution of cameras and DVRs is measured. Older camera technology is measured in TVL or “horizontal TV-Lines”, while newer HD camera technology is measured in pixels (horizontal multiplied by vertical). The greater the number of TVL or pixels, the better the resolution. One of the biggest flaws of current analog technology is that the highest analog recording resolution is 960H (960×480), or 960 horizontal lines, but 1000 TVL cameras typically have 1280×960 pixels, or 1280 horizontal lines. This results in forced recording at 960H, even if the camera has higher resolution. That is the same concept putting a governor on a sports car to maximize the speed at which it […]
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