Celestron offers an 80mm guidescope package priced at $189.95. The package includes an 80mm (3.1-inch) guide scope and 125mm mounting rings. A metal focuser with a tension screw is incorporated to ...

Celestron’s Off-Axis Guider uses an adjustable, multicoated 12.5-millimeter prism that allows you to locate a guide star. It has a fixed-orientation helical focuser and includes all needed spacers and ...