Explore Scientific 68 degrees 16mm Waterproof Eyepiece CW for perfect back focus it

for perfect back focus it can be used with other models of refractor

Before the introduction of the Dobsonian by John Dobson

The iOptron CEM40 mount uses the Go2Nova® 8407 hand controller to navigate the night sky

and the owner can document their equipment for insurance and warranty purposes

Explore Scientific 68 degrees 16mm Waterproof Eyepiece CW for perfect back focus itUsing advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coatings, Explore Scientific 68 Series Argon Purged Waterproof extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics. The visual effect of these eyepieces with their long eye relief and their 68 apparent field is truly a full immersion