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SR-50
Utilizing a 50mm lens, the SR-50 serves as a medium- to long-range surveillance camera and
provides a 14° HFOV. This focal length is widely deployed because it provides an even balance
between situational awareness and detailed perspective.
SR-35
The SR-35 camera features a focal length of 35mm, providing a short to medium field of view of
20° and is well-suited for short range threat detection in all circumstances.
SR-19
The SR-19 camera features a focal length of 19mm (36° HFOV) and, like the other SR-series
cameras, has a standard resolution Focal Plane Array (FPA) with 320 (H) x 240(V) pixels. It
gives you an extremely wide field of view, so that you can cover a large area and keep excellent
situational awareness.
VSR-6
The VSR-6 is an extremely affordable thermal imager with a focal length of 6.3mm (52°
Horizontal Field of View or HFOV). It features the same thermal imaging technology found in
many of FLIR's most sophisticated security and surveillance systems, but is packaged for users
who have short-range security and surveillance as their primary application. The camera has a
standard resolution FPA that is windowed down to 160(H) x 120(V) pixels. The wide field of view
allows it to cover a large area and provide excellent situational awareness.
2.1 Advantages of Thermal Imaging
Originally developed for the military, thermal imaging cameras are now deployed in numerous
commercial applications where it is impractical or too expensive to use active illumination
(lights). It is perfect for wide-area surveillance in critical infrastructure or high-value residence
installations where lighting is unwelcome or impractical. The camera also provides improved
daytime surveillance in environments where traditional CCTV security camera performance
suffers, such as in shadows, backlit scenes or through foliage.
Figure 3: Backlit daylight camera on left; thermal image on right
427-0014-00-10 Revision 150
Copyright © 2007 FLIR Systems, Inc.
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