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 inch 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 inch 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