Celestron SkySync GPS Accessory - 93969 20 mm Eyepieces About the TeleVue 16mm Nagler

About the TeleVue 16mm Nagler Type 5 Eyepiece - 1

Unit comes with one patented 2" / 1

and directly threaded onto any of the eyepieces to give 1

1% anti-reflective coatings as on the Lunt h-alpha etalons

About the TeleVue Focusmate Driver - Universal

Celestron SkySync GPS Accessory - 93969 20 mm Eyepieces About the TeleVue 16mm NaglerAbout the Celestron SkySync GPS Accessory At last a GPS for all computerized Celestron telescopes! Improve the accuracy of your initial star alignments by plugging in the GPS module into your telescope'''s drive base port. The Celestron SkySync GPS Accessory will link up and automatically download the exact time, date, longitude and latitude from one of many global positioning satellites. Celestron SkySync GPS Accessory Features 16 channel GPS module