This convenient filter set contains four different filters - #12 deep yellow. #21 orange. #25 red. and #56 light green. with a durable plastic storage case which holds them all.

#12 Deep Yellow 74% - enhances lunar features and the red and orange features on Jupiter and Saturn. Improves details of Neptune and Uranus in larger aperture (>11 ) telescopes. and increases contrast on Mars

#21 Orange 46% - increases contrast in features on the Moon and planets for visual and photographic applications. Enhances definition of comet dust tails and heads in larger telescopes (>11 )

#25 Red 14% - enhances Martian and Lunar surface details in large scopes. accentuates bluish cloud regions on Jupiter & Saturn. and reveals cloud definition on Venus

#56 Light Green 53% - enhances lunar detail. excellent for increased contrast of Martian polar cap. useful for cloud pattern studies on Mars and Venus. improves low contrast blue and red hues on Jupiter.