ZWO Off Axis Guider OAG with Helical Focuser

ZWO has bundled their thin Off Axis Guider with the popular ZWO Helical Focuser to provide and easy to use Autoguiding solution whilst only adding 16.5mm to the optical path.

Features precise easy focusing, a precision 8mm x 8mm  prism and it comes complete with M48 and M42 adapters to the scope and camera to keep back focus to a minimum.

Also includes a 5mm spacer for the guide cameras where the back focus is only 12.5mm.

Compatible with all ZWO ASI cameras.

A must for Cassegrain OTA’s. No guide scope is required therefore no differential flexure between Guide scope and main telescope.