Meade Series 4000 Filters
Color filters are essential for observing and imaging the moon and planets in tantalizing detail. The right filter can mean quite literally the difference between seeing several small craters in the floor of Clavius on the moon or not; seeing five or six swirls in Jupiter's north equatorial belt or not; seeing the inner crepe ring of Saturn or not.
Depending on atmospheric conditions on Earth and the planet being observed (or photographed), the advantage of color filters can be anywhere from subtle to dramatic.
Meade Series 4000 filters offer 26mm of clear aperture and are manufactured from the purest optical glass, dyed-in-the-mass (not "color coated") There are no finer filters available for telescopic applications. They thread into the barrels of virtually any brand of 1.25" eyepiece as well as the 1.25" Meade Basic Camera Adapter. They may also be stacked to achieve selective filtration of the visual color spectrum.
Each Series 4000 filter is packed in a foam-fitted plastic case for safe long-term storage.
#12 Yellow (74% Transmission)
Adds contrast to blues and enhances reds and yellows on Jupiter and Saturn, increases contrast on Mars and the moon (in scopes 6" plus)
#23A Light Red (25% Transmission)
Enhances detail in polar regions of Jupiter, Saturn and Mars (in scopes 6" plus). Also increases contrast between Mercury and evening sky.
#58 Green (24% Transmission)
On telescopes 8" plus, this green increases belt structure on Jupiter and Saturn's surface and in Saturn's rings. Also enhances Mars' ice caps.
#80A Blue (30% Transmission)
A popular filter for enhancing spiral features in Jupiter's cloud belt (including Red Spot), and adding contrast to Saturn and the moon.
#11 Yellow-Green (78% Transmission)
Contrasts with red and blue features on Jupiter, and Saturn. Darkens the maria on Mars. Clarifies the Cassini division in Saturn's rings.
#25A Red (14% Transmission)
Dark red blocks blue and blue-green for sharp contrast in Jupiter's cloud belts. Helps define polar caps and maria on Mars. For telescopes 8" plus.
#47 Violet (3% Transmission)
Strongly rejects red, yellow and green. For study of Martian polar caps, the atmosphere of Venus, Saturn's rings. For telescopes 8" plus.
#82A Light Blue (73% Transmission)
Useful on the moon, Mars, Jupiter, and Saturn. Light blue adds contrast without robbing image brightness. A valuable filter for stacking.
#8 Light Yellow (83% Transmission)
Popular for enhancing lunar features in telescopes 8" and under. Also for observing red and orange features of Jupiter, Uranus and Neptune.
#21 Orange (46% Transmission)
Blocks blue-green wave lengths to enhance detail in polar regions of Jupiter and Saturn. Also sharpens edge detail of maria on Mars.
#38A Dark Blue (17% Transmission)
Popular for study of Jupiter. Strongly refects orange and red for greater cloud belt and Red Spot contrast. Also for Mars, Saturn and Venus
#56 Light Green (53% Transmission)
Excellent for Mars' polar ice caps and yellow-tinted dust storms. Also for increasing red and blue features on Jupiter and lunar contast.
