Here is a demonstration of a PTZ camera in use at night.

this is a demonstration another PTZ
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CCTV camera operating at night
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PTZ stands for Pan Tilt
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Zoom. During the day the camera operate in full color
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but as night falls in the light levels drop it turns to black and white
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and here you see they’re black and white
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image produced the images are being eliminated by
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the ambient light in this case is a streetlight
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but often one would have external light on the property
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can perfectly adequate light for this black and white camera
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PTZ camera and this point you can see that it’s programmed
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pan to and fro from left to right
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in a set pattern and this will carry on all night the camera can also be zoomed
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in on detail
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or tilted up or turn her
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this carries on on a regular pattern
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and the time at which things there happening is shown at the top of the
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screen
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so in playback it’s easy to identify exactly
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when events took place and in a moment I think you’ll see
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a vehicle coming Bonnie
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with the headlights her shining there that’s gone
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now if a person was passing by pedestrian say
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facing the camera the beat perfectly
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enough light and plenty of detail
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see you would be able to identify the individual and for that matter anything
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else is going on
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you would be able to say sufficient detail to see
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what was happening the amount of detail possible
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is a very good indeed. This is a high quality
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camera in action now that carries on all night
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he in the morning you or at some later time you want to see what was going on
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you could
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play back the whole image identify the time
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a look at it in detail so there we have it a PT said
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camera operating at night
Uploaded on Oct 2, 2011