ZWO IR-Cut Filter - 1.25" - IRCUT1.25The ZWO 1. 25 IR UV CUT filter is suitable for color cameras with an AR window. The ZWO IR Cut Filter blocks infrared light from reaching the sensor of your CCD or CMOS camera or your expensive H alpha filter. When imaging, the addition of this simple and inexpensive accessory will result in sharper images, and when doing solar work, the ZWO IR Cut Filter will protect your H alpha filter from the damaging effects of infrared radiation. Unlike the