Celestron 94119 10 Lunar and Planetary Eyepiece Filter Set, 4 Pieces Includes Deep Yellow (12), Orange (21), Blue (80A) Neutral Density Polarising Filters for 1.25 inch Eyepieces

VERSATILE: All of the planetary filters included in the Celestron Lunar and Planetary Filter Set can be used on any 1.25” eyepiece with the proper filter threads. PERFECT FOR ASTRONOMY BEGINNERS: See features on the Moon and planets in a whole new light. Coloured filters can be used to bring out details on a planet’s surface or its cloud structure. FILTER SET CONTENTS: Includes wratten #12 deep yellow, #21 orange, #80A blue and #ND-96-0.3 Neutral Density polarising filter with 50% transmission. KEY FEATURES: Each Celestron 1.25” filter has 26mm of clear aperture and is mounted in a black anodized aluminium cell that is threaded on both sides. Special coatings on each filter protect against reflections, ghosting and scratches. STACKABLE: Double threads allow the user to stack different filters together to create a custom colour or transmission percentage effect.