52° 6.5mm Waterproof Eyepiece Discontinued Tested Under 1 Meter of

Tested Under 1 Meter of Water for 30 Minutes Eyecup Removable Flip-Down Style Soft Silicone Rubber Lens Caps Slide-on Top and Bottom Materials Optical Glass

1¼” 60° Everbrite Diagonal  has 99% reflection across the visual spectrum

and our enormous local galaxy group companion the Andromeda Galaxy (M31) in Constellation Andromeda

Designed for use with 400mm to 660mm focal length refractors with f/5 to f/7

exotic Lanthanum elements

52° 6.5mm Waterproof Eyepiece Discontinued Tested Under 1 Meter ofFeatures Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coatings, Explore Scientific 52 Series Argon Purged Waterproof eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics. The 52 Series eyepieces are par focal (meaning they focus at near the same point regardless of the focal length you select) and come