| Lens |
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| Just
like in the case of spectacles, there are different spectacles
for near vision and distant vision. Similarly, the lens
can be regarded as a spectacle. In CCTV Lenses there are
two types of lenses depending upon their mounting, i.e.
C and CS Mount. The criterion of selection of a lens is
focal length, which is given in millimeters. Another important
selection criterion is the angle of view, which is proportional
to the focal length. In CCTV another important thing is
the format of the lens, which may be 1/2", 1/3"
or 1/4" depending upon the size of the CCD Image
Sensor of the Camera. |
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| Performance
of different types of lenses available at Mondial Security
Electronics are demonstrated as follows: |
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| 4mm Telephoto
Lens (70.6 Degrees): |
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| 12mm
Telephoto Lens (22.1 Degrees): |
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 |
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| 8mm Telephoto
Lens (36.5 Degrees): |
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 |
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| 16mm
Telephoto Lens (17.1 Degrees): |
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 |
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| 6mm Telephoto
Lens with Auto Iris: |
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 |
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| 17.5
to 105mm Vari Focal Length Zoom Lens: |
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 |
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 |
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| 2.5mm
Super Wide Angle Board Lens: |
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 |
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| 3.6mm
Wide Angle Board Lens: |
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 |
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20
to 32mm Vari Focal Zoom Lens
20 to 60mm Vari Focal Zoom Lens
125mm Fixed Focus Lens
6 to 60mm Vari Focal Motorized Zoom Lens |
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