This 20mm Astro-Tech Value Line Plössl is a good quality medium power eyepiece at a surprisingly affordable price for a true fully-multicoated Plössl eyepiece. The Astro-Tech 20mm will fill your eyepiece field with sharp, high contrast images of the Moon and deep space objects alike. Emission and reflection nebulas, open and globular clusters, galaxies . . . all are fair game for the 20mm Astro-Tech. It will work well with any telescope type, at any focal ratio, under any seeing conditions. Eye relief is a long 20mm, for virtually unvignetted viewing when using eyeglasses. A knurled rubber ring on the body provides a secure grip when changing eyepieces in cold or damp weather.
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