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This miniature camera utilizes a 0.33-inch CCD (charge-coupled device) image sensor with a 3.6-millimeter conical pinhole lens, and provides 512-by-492 effective pixels. The CVC-57PH/HR has a high horizontal resolution of 400 TVL (TV lines), works well in low-light conditions with a minimum illumination of 0.5 Lux, and achieves a S/N (signal-to-noise) ratio of 46 dB or better. The SPECO CVC-57PH/HR operates on the EIA (Electronics Industries Association) scanning system, and includes a standard RCA for video output that allows it to connect to most any TV or VCR. This unit runs on 12-volts DC power, and can operate in temperatures ranging from 14 to 122 degrees Fahrenheit. The CVC-57PH/HR comes complete with a built-in automatic electronic shutter with speeds ranging from 1/50 to 1/10,000 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
1 of 1 people found the following review helpful:
4.0 out of 5 stars
Pretty good cam for the money. Decent low-light capabilities.,
By thebigE (Los Angeles, CA) - See all my reviews
Amazon Verified Purchase(What's this?)
This review is from: SPECO CVC-57PH/HR B/W Mini Conical Pinhole Lens Board Camera with Housing (Electronics)
Mine had a few "stuck pixels". Not a major problem though. Uses the standard +12v connector for power, and a BNC connector for video (my application needed an RCA video connector so I had to use an adapter, which works fine). It does have good low-light capabilities, but sometimes overcompensates when there are dark and light areas in the field of view.
2.0 out of 5 stars
Not as described and not described clearly,
By Whimsy (pittsburgh, pa) - See all my reviews
Amazon Verified Purchase(What's this?)
This review is from: SPECO CVC-57PH/HR B/W Mini Conical Pinhole Lens Board Camera with Housing (Electronics)
Just ordered and received this camera and I'm not happy.Despite the "Technical Details" bullet point: "Runs on EIA scanning system and includes 12-volt DC power supply" it did NOT come with a power supply. Instead it came with a cable one might wire to a power supply- useless without buying additional equipment, which I would have done, had the description been accurate. Further, the camera is BLACK AND WHITE. In retrospect, I can see that the B/W at the end of the the serial number-esque title "SPECO CVC-57PH/HR B/W" probably stands for Black and White. But seriously, in the entire 5 paragraph description, this is _not_ mentioned! In the technical details list it is _not_ mentioned. There are many variations of this camera that look very similar to one another. Some I have purchased previously, which were in color. I would expect the Black and White specification to be more clearly and prominently displayed on this model.
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