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You’ve started your list of features that
you need for an outdoor surveillance camera, such as: wanting clear pictures of
the porches and driveway, and a viewing angle that is wide enough to see
everything you’ll need to see. You may want a motion sensing feature, or perhaps
a night vision feature for very dark areas of the premises. And while many cams
are adaptable to outside use, if the unit is not described as weatherproof, the
outdoor surveillance camera will need to be semi-sheltered from bad weather. But
what about the lens features of the camera?
What do Resolution and Lux Mean in an
Outdoor Surveillance Camera?
Camera descriptions often include the
specs for the lens, such as resolution and Lux. Simply put, resolution measures
the cameras ability to reproduce an image. The higher the resolution: the better
the picture quality. And Lux is the measure of light the camera requires to
reproduce an image. The lower the number, the less light the outdoor
surveillance camera requires to reproduce an image:
.01 lux - The lowest level of light the
human eye can see at. (If you can see it the camera does not need extra light;
if you can’t see it, then it needs extra light.) .5 lux – You need a 40w-60w bulb to
capture image at this level
1 lux – You need some extra light to
capture image at this level
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