Celestron 80mm Guidescope Package with 125mm Rings and 80mm Guidescope with Extension Tube - 52309
The 80mm Guidescope Package is bundle from Celestron containing two 125mm rings and guidescope compatible with Celestron's NexGuide Autoguider. An extension tube means you can reach focus without a diagonal. An M42 thread on the extension tube allows an easy sliding of the NexGuide autoguider barrel into the extension tube. There is a tension screw on the focuser to minimize the play when focusing.