Meade Series 4000 Telescope Color Filters:
- Large 26mm in clear aperture
- Manufactured from the purest crown optical glass
- Dyed-in-the-mass (not "color coated")
- Each filter glass is anti-reflection coated on both sides and is mounted in a machined aluminum cell with the Wratten No. of the filter marked on the side of the cell.
- Filters may be piggybacked, or stacked, to achieve selective filtration of the visual color spectrum.
Color filters can be very useful for enhancing your views of the Moon and the planets. Depending on the atmospheric conditions, the telescope being used, the observer's experience, and the planet being observed or photographed, the advantages of color filters can be anywhere from subtle to dramatic. The right filter can make all 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 belts or not; or seeing the inner Crepe Ring of Saturn or not.
Meade #47 Violet Color Filter # 07516. 3% transmission. This filter strongly rejects red, yellow and green, for study of Martian polar caps, the atmosphere of Venus, and Saturn's rings. Recommended for telescopes 8" and larger in diameter due to extremely strong filtering. Venus: Increases contrast of occasional faint dark shadings in the upper cloud deck. Mars: Useful for detecting high clouds and haze over the polar caps. Jupiter: Primarily used for enhancing the boundaries between the reddish belts and adjacent bright zones in the upper atmosphere. Helpful in defining the Great Red Spot and festoons in the belts. Saturn: Good for enhancing the ring structure.
For all 1.25" eyepieces that can accept standard 1.25" astronomy filters. Premium quality glass filter with aluminum cell. Made in Japan. New old stock so boxes may show some light wear from storage.
Product carries full one year factory limited warranty (within US/Canada only).
Agena Informational Article: Choosing a Color / Planetary Filter