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Extensive Selection – Fixed,
Varifocal, and Zoom Lenses
Fixed Lenses
Pelco’s fixed focal length lenses are available with choice of iris
function (manual or auto
iris) and focal length (2.3 mm to 8 mm). Fixed lenses have a
predetermined focal length and
manual focus control.
Varifocal Lenses
Pelco offers a large selection of varifocal lenses. Lenses are available
with adjustable zoom
for a large range of focal lengths. Unlike a zoom lens, a varifocal lens
does not maintain
focus when zoomed. The lens at installation is set for optimum field of
view.
Day/Night (D/N) Corrected Lenses
Pelco D/N corrected lenses correctly focus visible and
infrared (nonvisible) light, solving the
problem of “focus shift” for cameras with true day/night capability
(switching between
color and black-white modes by mechanically removing the camera’s IR
filter).
D/N-corrected lenses should also be considered when using day/night
cameras.
Motorized Zoom Lenses
All Pelco zoom lenses feature auto iris, motorized zoom and focus lens
functions.
A motorized zoom lens keeps the viewed object in focus while varying the
focal length of
the lens.
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