The iEXOS-100 illuminated polar finder and adapter was designed for the iEXOS-100 mount to ensure a more precise alignment with the celestial pole.
Although a rough alignment with the celestial pole is usually sufficient for visual observing, astrophotography can have precise requirements. (See the Gallery tab and click on the image for a alignment chart.)
The included adapter is easy to install, and the reticle has markings for both Northern and Southern hemisphere alignments. It also incorporates a brightness adjustment.