#80A Medium blue 1.25" color filter

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This #80A medium blue Astro-Tech 1.25” eyepiece filter is a useful tool to improve surface and atmospheric details when viewing the Moon, Mars, Jupiter, and Saturn with telescopes 6” to 8” in aperture and larger . . .

Recommended applications for this filter:
Moon – Very useful as a contrast-enhancing lunar filter under medium sky conditions with scopes 6” and larger. Mercury – May improve observations of rarely visible dusky surface features at twilight, when the planet is near the horizon. Venus – Increases contrast of occasional faint medium shadings in upper Venusian clouds. Mars – Useful for enhancing the visibility of surface features and localized dust storms, clouds, and ice fogs with 8” or larger scopes, particularly during the still-unexplained phenomenon of violet clearing (when the Martian atmosphere – normally a bright, featureless disc in violet light due to the scattering of short wavelengths of light by the thin atmosphere – becomes transparent through a violet or blue filter, revealing large medium surface features). 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 – Brings out details in the belts, zones, and polar regions of the planetary disc. Comets – Brings out the best highlight definition in comet gas tails in 8” and larger scopes.
30% transmission

Color:
Color of the given filter.
80A - Medium Blue
Weight:
The weight of this product.
1 oz.
Warranty:
2 years
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Astro-Tech - #80A Medium blue 1.25" color filter

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Astro-Tech - #80A Medium blue 1.25" color filter
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Our Product #: ATCF80
Price: $11.95  Ground shipping for this item is $8.95 - Click for more info
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This Astro-Tech #80A medium blue 1.25” eyepiece filter is very helpful when observing the Moon, Mars, Jupiter, and Saturn if you have a scope 6” to 8” in aperture and larger . . .





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