Used Tele Vue 12mm Nagler Type 2 Filter Set The MiniPier fits on various

The MiniPier fits on various iOptron tripods/piers

An etalon is a type of interferometer

Let the sky move

Regal is the perfect choice

Keep each one in its appointed place when not in use and you’ll keep them looking and performing like new

Used Tele Vue 12mm Nagler Type 2 Filter Set The MiniPier fits on variousCondition: This is a TeleVue 12mm Type 2 Nagler in excellent condition. The optics and body are clean. This has both dust caps, and comes in its original box. The first of the Type 2 Naglers, the 12 mm continues the tradition of optical excellence in the Nagler line. The Type 2 eyepieces contain 8 elements instead of 7, and do not suffer from the Kidney Bean Effect. However, some of the eye relief went away (check one out beforehand if you wear