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Quantity
1
Description
Chromatic aberration — the purple fringing around bright stars and the Moon that plagues achromatic refractors — is what drives observers to upgrade to ED glass. The Explore Scientific ED80 Essential Series packs a true air-spaced triplet A...
Reviews
5.0
1 rating
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Good Scope
Recently received this scope based on a friend's recommendation. Arrived quickly and well packed. Focus mechanism smooth. Scope well built. Have only done a few short day time tests. Looking forward to using it for AP. @ 480mm of focal length, good for many types of imaging.