Meade 07530 Series 4000 Color Filter Set No.1 (Black) Enhances the contrast of the moon and planets in photographic images Thread into the barrel of Meade 1.25-inch eyepieces Includes a no.12 yellow with 74-percent transmission and a no.23A light red with 25-percent transmission Includes a no.58 green with 24-percent transmission and no.80A blue with 30-percent transmission Comes with a 1-year limited warranty