skylight filter

skylight filter

n
(Photography) photog a very slightly pink filter that absorbs ultraviolet light and reduces haze and excessive blueness
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Translations
References in periodicals archive ?
Since the skylight filter is farther away than the chip's protective window, any dust that collects on it is defocused and won't show in the image.