A Guide to Choosing Astronomy Eyepieces for Binoviewers

Alan Gee Celestron/Baader Binocular Configuration

Alan Gee Binocular Configuration

The above schematic shows the layout required for using your SCT with the Alan Gee II and 60° Celestron/Baader Binoviewer.  The following part will be required, in addition to those supplied with the Celestron Binoviewer and Alan Gee Mark II Telecompressor:

Short T-Adapter (order # T2-21)

If you require the ability to insert the binoviewer/telecompressor assembly directly into a 2" holder, the following additional part will be required:

T-2/T-2 Inverter (threaded coupler ring) (order # G-TM)