Astronomic IR-BLOCK filter in 2 "housing.
The IR blocking filter is commonly used with sensors with a low sensitivity in ultraviolet, typical for eg webcams, DSI and LPI cameras from Meade, and most video cameras. It allows you to eliminate most of the problems, such as image softness or halo around objects.
Thanks to very good UV and IR blocking, problems with the optical system for these spectral areas are avoided.
The filter optimized for light from f / 0.5 to f / 50. Typical transmission over 99%. • protects the camera sensor, cuts out IR and practically all ultraviolet
• diffraction-limited accuracy
• parchocal with other Astronomic filters
• thickness: 1 mm
• resistant to moisture, scratch, does not age 
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