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· The Bosch LTC 0498 Series Dinion2X Day/Night Camera specifies a Dynamic Range of 120 dB (20-bit image processing) which is very good but the best digital SLR cameras have a dynamic range of 14 to 17 stops (or EV or bits). The dynamic range of a human eye is about 14 stops. How is it possible that a CCTV camera can be better than the human eye a good DSLR?

· The Signal-to-Noise Ratio of most CCTV cameras is about 50 dB. How is a good dynamic range possible with such a low S/N ratio? Thanks! Frank

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This sounds like more of an electronics question, or at least videography. Unfortunately, Photo.SE isn't equipped to handle either of those fields. – Craig Walker May 24 '11 at 14:56
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120 dB is 10^12 difference, which is about 40 stops. According to Bosch brochures, they use their own wide dynamic range CCD sensor, which may (or may not) be something similar to this: en.wikipedia.org/wiki/Super_CCD Then you just have to apply some tone mapping to get image quite like the HDR that people do on their PC's. Except the resolution is 752x582. (I know this is OT, I couldn't resist :-) – che May 24 '11 at 21:56

closed as off topic by Craig Walker, mattdm, Itai, Rowland Shaw♦ May 24 '11 at 17:18

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