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©2013Celestron•Allrightsreserved.•www.celestron.com
2835ColumbiaStreet•Torrance,CA90503U.S.A.
Telephone:1(800)421-9649
FilTErs
eyepiece filters are an invaluable aid in lunar and planetary observing. They reduce glare and light scattering, increase contrast
through selective filtration, increase definition and resolution, and lessen eye fatigue.
Celestron’s filters are made of high quality, solid plane parallel glass with excellent homogeneity. The colored filters are
anti-reflection coated to prevent glaring and ghosting. All eyepiece filters are threaded to fit Celestron’s, and most other
manufacturer’s, 1¼” eyepieces.
To attach the filter onto the included eyepieces, simply thread the male thread on the filter into the bottom of the eyepiece
barrel. Then insert the eyepiece (with filter attached) into star diagonal or focuser of your telescope.
#80A Light Blue Filter - 30% transmission
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Jupiter – enhance the boundaries between the reddish belts and adjacent bright zones. Useful for viewing the Great Red Spot.
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Mars – Very useful during the violet clearing. helpful in studying surface features and polar caps.
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Mercury – Improve observation of dusky surface markings at twilight, when the planet is near the horizon.
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Saturn – enhance low-contrast features between the belts and zones.
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Venus – Useful for increased contrast of dark shadings in upper Venusian clouds.
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Comets – Bring out the best definition in comet gas tails.
#25 Red Filter - 14% transmission
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Jupiter – Useful for studying bluer clouds.
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Mars – Ideal for observation of the polar ice caps and features on the Martian surface. Sharpens the boundaries of yellow
dust clouds.
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Mercury – Improves observation at twilight, when the planet is near the horizon. during daylight, it reduces the brightness
of the blue sky to enhance surface features.
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Saturn – Useful for studying bluer clouds.
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Venus – Use during daylight observing to reduce brightness of blue sky. Occasionally deformations of the terminator are visible.
Moon filter – 13% transmission
Celestron’s Moon Filter is an economical eyepiece filter for reducing the brightness of the moon and improving contrast,
so greater detail can be observed on the lunar surface.
MicroFiBEr cloTh
The Celestron microfiber cloth will safely remove fingerprints and smears from optics without causing any damage or leaving
residue. Use the cloth to gently rub across the surface of the optics. don’t rub in circles. For larger optics such as binoculars
and telescopes, start in the center of the lens and rub out towards the edge.
warranTy:
Two year limited warranty. See the Celestron Accessory Catalog (#93685) for complete warranty details or contact Celestron
#94308-INST