ZWO 7x2 EFW Electronic Filter Wheel - Next Gen - 7 Position for 2" or 50.4 mm Filters - EFW-7X2-25 SCT Adapter the latest in revolutionary hybrid

the latest in revolutionary hybrid strain wave drive mounts

The steel worm gears are supported by precision bearings and spring-loaded against a brass worm wheel

25” Celestron Schmidt-Cassegrain or EdgeHD telescope tubes made from 2006 on

75) right at the eye lens of the Hyperions

ZWO 7x2 EFW Electronic Filter Wheel - Next Gen - 7 Position for 2" or 50.4 mm Filters - EFW-7X2-25 SCT Adapter the latest in revolutionary hybridZWO 7x2 EFW Electronic Filter Wheel with Anti Light Leak Technology 7 Position, Uses 2" Threaded or 50. 4 mm Unthreaded Filters The Next Generation ZWO EFW Refined Design Anti Light Leak Protection Built for Astrophotography * A re engineered internal design helps reduce light leakage, while the refined mechanics deliver smoother, more consistent rotation. *The exterior has been subtly streamlined, giving the wheel a cleaner and more cohesive look.