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Long-range
Surveillance lenses include par focal, multifocal length and zooms with
apertures from 100mm to 300mm. Typical lenses have 150mm apertures and a
300-3,000mm zoom. All video formats are covered and many versions are compatible
with 35mm still-frame photography.
These lenses normally have motorised zoom and focus. They are designed for ease
of use and require the minimum of maintenace.
Ideal for police, Military and Customs use.
Medium-range
Surveillance lenses include fixed, multifocal length and zoom. Apertures are
100-200mm with focal lengths between 300-3,000mm. Typical lenses have 100mm
apertures and vary between 1,000-3,000mm maximum telephoto; they are mainly
manual zoom and focus.
All video formats are covered and many versions are compatible with 35mm
still-frame photography. These lenses are designed to be lightweight and simple
to use.
Ideal for Police, Military, Environmental Agency and Customs use.
Low-light
Surveillance lenses have relatively short focal lengths, 500-1,500mm with
large 300mm apertures. The lenses are compatible with all night vision devices
and are used where totally passive observation is required. Ultra fast coatings
allow maximum light transmission.
Lenses are available with motorised focus and focal length change.
General-purpose Surveillance lenses have fixed focal lengths from
100-1,200mm. Traditional refractive lenses with ND spot filter as standard and
motorised focus and iris options.
Video and 35mm formats also available.
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