92° 17mm Waterproof Eyepiece Apochromat Larger 40 mm optical window

Larger 40 mm optical window offers a wider field of view so you can acquire targets quickly and easily

except the twist lock rings

for advanced control of telescope via computer

25 in (32 mm) Eye Relief (mm) 6 mm (0

Star diagonal provides more comfortable viewing position when observing objects that are high in the sky

92° 17mm Waterproof Eyepiece Apochromat Larger 40 mm optical windowFeatures The Explore Scientific 92 Series eyepieces are hyper wide class oculars that can transform your visual astronomy experience. You may be startled at the amazingly wide expanse of inky black sky you behold the first time you bring your eye to a 92 Series eyepiece, and after awhile, you may even forget that you have an eyepiece between you and the universe! With an apparent field of view that is close to the maximum for hyper wide eyepiece