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    1. Non-Factory
    2. Security, Surveillance, Transportation

    Lenses enhance day/night surveillance

    Aug. 9, 2007
    Day/night IR lenses are engineered to work with IR illuminators and true day/night cameras that use a retractable IR cut filter. They eliminate the focus shift that often occurs with conventional lenses at night, providing optimum sharpness for 24-hour surveillance. The 8.5--40-mm IR varifocal lens features an extended telephoto range while maintaining a maximum aperture of f/1.3.

    Day/night IR lenses are engineered to work with IR illuminators and true day/night cameras that use a retractable IR cut filter. They eliminate the focus shift that often occurs with conventional lenses at night, providing optimum sharpness for 24-hour surveillance. The 8.5--40-mm IR varifocal lens features an extended telephoto range while maintaining a maximum aperture of f/1.3. The all-purpose 2.8--12-mm IR varifocal lens provides the proper field of view for almost all general surveillance applications. The 2.9--8.2-mm IR varifocal lens features aspherical optics to provide a superfast f/1.0 maximum aperture for low-light performance. All Computar IR varifocals are available in manual iris, dc auto iris, or video auto iris versions.
    CBC (America)
    Commack, NY, USA
    www.cbcamerica.com

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