The Celestron CG4 Polar finder makes polar aligning easy. Compatible with Sky-Watcher EQ3, HEQ5 and Orion Astroview mounts. Works in both North and South hemispheres.
Simply rotate the RA axis till the constellation pattern in the reticule matches the orientation of the actual constellations in the sky. When polar aligning in the Northern hemisphere, place Polaris in the Polaris circle. When polar aligning in the Southern hemisphere, place the four stars from the constellation Octans in their respective circles.
The reticule and the sky image can be focused independently. The reticule plate can be adjusted to centre the reticule with respect to the RA axis.
Note: The reticule adjustment screws push against the edge of the reticule glass, so care must be taken to not overtighten the screws.
Requires a 19mm inside diameter RA bore.