Meade 07528 Series 4000 Color Filter Set No.3 (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.8 light yellow filter with 83-percent transmission ideal for 10-inch apertures or larger and a no.21 orange filter with 46-percent transmission Includes a no.38A dark blue filter with 17-percent transmission and a no.56 light green filter with 53-percent transmission Comes with a 1-year limited warranty