Explore Scientific 52° 15 mm Waterproof Eyepiece - EPWP5215-01 iOptron clear Bahtinov Mask for perfect

clear Bahtinov Mask for perfect focusing every time

all positioned for easy thumb or finger control

25-inch Visual Backs of all Schmidt-Cassegrains and also Focusers of refractors

65 mm Refractor Spotting Scope

TeleVue Product Number: ETH-17

Explore Scientific 52° 15 mm Waterproof Eyepiece - EPWP5215-01 iOptron clear Bahtinov Mask for perfectExplore Scientific 52 15 mm Waterproof Argon Purged Eyepiece This Explore Scientific 52 15 mm Waterproof Argon Purged Eyepiece provides all the comfort, quality, and value you have learned to expect from Explore Scientific. The Explore Scientific 52 Series eyepieces are excellent flat field multi element oculars that will literally transform your visual astronomy experience to new heights. With an apparent field of view of 52, this 15 mm focal length