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This bullet camera utilizes a 0.33-inch color Sony HAD CCD (charge-coupled device) image sensor with a 3.6-millimeter fixed lens. The CVC-637EX has an extremely high resolution of 470 horizontal TVL (TV lines), and achieves a S/N (signal-to-noise) ratio of 50 dB or better. Very sensitive to light, this unit can receive a clear and usable picture with a minimum illumination of 0.03 Lux. The SPECO CVC-637EX includes a standard BNC (Bayonet Neill-Concelman) video output, runs on 12-volts DC power, and can operate in temperatures ranging from -20 to 122 degrees Fahrenheit. The CVC-637EX comes complete with a built-in automatic electronic shutter with speeds ranging from 1/60 to 1/100,000 of a second.
Technical Features:
About Surveillance Camera Technical Features
Lux rating is the measurement used to indicate how sensitive a camera is to light, and stands for the level of light reflected off a piece of paper by a candle from one meter away. Thus a sensitivity of three Lux would mean a camera could generate an acceptable picture of a piece-of-paper-sized object that was illuminated by the equivalent of three candles from one meter away. The lower the Lux level, the better the camera's ability to work in low-light conditions. The camera's resolution should be greater than or equal to the resolution supported by the system's recorder or monitor. The S/N, or signal to noise ratio, is an important measure of a camera's quality. A poor camera, low-light conditions or poor wiring causes "noise" which consumes processing power and disk space. A camera with a wide dynamic range is ideal, especially for recording areas in which both indoor and outdoor light are present. CCD (charge-coupled device) sensors provide high-quality images that are less susceptible to noise. CMOS (complimentary metal-oxide semiconductor) sensors offer less image quality, but are usually more cost-effective and energy efficient.
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Most Helpful Customer Reviews
5 of 5 people found the following review helpful:
5.0 out of 5 stars
Awesome, highly recommended,
By Crazy Dude (Burbank, CA United States) - See all my reviews
This review is from: Speco Technologies Miniature Weather-Proof Color Bullet Camera (Electronics)
This is one of the best cameras of its size. I used it to catch someone breaking into my car back in 2004 in a home-made set up. Although the video is B/W (because it was dark and the car is all grey/black inside) and it's YouTube video (highly compressed).
When enough light is available it displays in color, but automatically switches to black'n'white mode when it gets dark. I picked this camera because it had the best lux rating for its size, meaning it sees very well in the dark. It's not perfect and needs some light, but I haven't seen anything better to date. It was originally captured at 640x480 and looks very crisp. The police said it was the best security video they'd ever seen-- much better than anything they get from store robberies, etc. You can also see a cleaner 320x240 video, although edited for fun, at www.BadThief.com I now have the same camera sitting outside so I can see my driveway. It's been working non-stop for 2 years in hot and cold weather.
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