William Optics Gran Turismo 81 WIFD Triplet APO (T-GT-81 WIFD) Pro 75 Protect window AR window

75 Protect window AR window Dimensions 86mm Diameter Weight 640g Back Focus Distance 17

Give us a call with any questions you have about accessories

This iOptron CEM40 mount has a dual saddle that accommodates Losmandy and Vixen-style dovetail plates

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

Aperture 65mm Focal Length 416mm Focal Ratio f/6

William Optics Gran Turismo 81 WIFD Triplet APO (T-GT-81 WIFD) Pro 75 Protect window AR windowThe 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