Description
PRODUCT DESCRIPTION
THE UHC (ULTRA HIGH CONTRAST) BROADBAND FILTER HAS BEEN DESIGNED TO IMPROVE THE VISIBILITY OF VARIOUS DEEP-SKY OBJECTS.
THIS IS ACHIEVED IN PART BY REDUCING THE TRANSMISSION OF LIGHT POLLUTION WAVELENGTHS, PARTICULARLY THOSE ARISING FROM ARTIFICIAL LIGHTING INCLUDING MERCURY VAPOR LAMPS. BUT ALSO THROUGH THE BLOCKING OF THE EMISSION OF SODIUM VAPOR LAMPS AND THE HARMFUL SKY GLOW EFFECT. TOGETHER WITH THE HIGHLY CLEAR TRANSMISSION LINES OIII (496 NM & 500 NM), H-BETA (486 NM), NII (654 NM & 658 NM), H-ALFA (656 NM) AND SII (672 NM) THIS FILTER IS PERFECT FOR THE IMPROVEMENT OF CONTRAST AND DETAILS FOR VISUAL AND PHOTOGRAPHIC USE, IN AREAS WITH STRONG LIGHT POLLUTION.
WITH FRAME FOR ASSEMBLY ON NIKON CAMERAS
ATTENTION, THIS FILTER MUST NEVER BE USED ALONE FOR SUN OBSERVATION!
THIS ITEM IS NOT AVAILABLE TO CUSTOMERS IN GERMANY.
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