68° 34mm Waterproof Eyepiece Focus Masks Argon cools slower thereby buffering

Argon cools slower thereby buffering the effects of rapid temperature changes of the optics

The internal RA and DEC motor wiring provides a clean look and an easy and trouble free set up

This process makes alignment as easy as 1-2-3: just center three bright objects in your eyepiece and press ALIGN

it’s ready to view in the telescope’s eyepiece

or is loose and does not stay firmly in place

68° 34mm Waterproof Eyepiece Focus Masks Argon cools slower thereby bufferingFeatures Using 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