Used Astrodon 2" Luminance (UV/IR) FilterCondition: This is a 2" Astrodon Luminance (UV IR) filter in pristine condition: the optics are clean, with no scratches. Includes the original jewel case. Description: Most one shot color cameras do not include blocking filters to prevent "out of band" light from exposing the background of the detector, reducing the over all contrast of your image. Astrodon One Shot Color Luminance UV IR Cut filter blocks wavelengths shorter than 400nm and longer