William Optics Gran Turismo 81 WIFD Triplet APO (T-GT-81 WIFD) Pro astrophotographers can cut down on

astrophotographers can cut down on the problems caused by periodic error to get smoother tracking and better performance from an autoguider resulting in a sharper

This ZWO Hand Controller is designed to be used with the Electronic Automatic Focuser (EAF)

All Antlia LRGB-V Pro filters are edge blackened to eliminate internal reflections from stray light

continuous heat that will prevent dew from forming even under heavy dew conditions

William Optics Gran Turismo 81 WIFD Triplet APO (T-GT-81 WIFD) Pro astrophotographers can cut down onThe New Gamechanger Introducing the William Optics Internal Focus Design (WIFD) Apochromatic Series. This innovative and revolutionary design combines a precision (Patented) internal focusing mechanism with the highest quality optics available, providing the ultimate Apochromatic refractor for astrophotography. Designed from the ground up with the ability to handle the newest generation of large, heavy, high resolution cooled cameras, the rock solid