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Designed with the very latest in optical glass types, Meade four-element Series 4000 Super Plossls are excellent general-purpose eyepieces. For observing hairline lunar and planetary detail, splitting close double stars, or for resolving faint nebulosity in deep space, Super Plossls optimize the performance of any telescope type.Features:20mm focal length52? apparent field1.25" ocular diameter, barrel threaded for filtersFour-element designSeven-layer, multi-coated opticsEdge-blackened for optimum image contrastParfocal design limits refocusing when switching between series 4000 eyepiecesRubber gripsMeade Series 4000 eyepieces yield the widest possible fields of view, consistent with pinpoint edge-of-field sharpness and long eye relief ? with extremely low astigmatism, spherical aberration and off-axis color. Each eyepiece includes a soft rubber eyeguard ? custom fitted to each eyepiece with a bayonet mount ? that folds down for eyeglass wearers.
