ZWO EFWMini 5 Position Electronic Filter Wheel for 1.25 and 31mm Filters lx 5-pound counterweights and a counterweight

5-pound counterweights and a counterweight extension bar

Outer Connection (Lens sided): Thread

Rubber armored for improved ergonomics and protection from every day use in the field

All Astro Fi Wi-Fi Telescopes

Its narrow 7nm FWHM bandwidth has a transmission at H-Alpha of over 90%

ZWO EFWMini 5 Position Electronic Filter Wheel for 1.25 and 31mm Filters lx 5-pound counterweights and a counterweightZWO EFWMini 5 Position Electronic Filter Wheel for 1. 25 and 31mm Filters This ZWO EFWMini 5 Position Electronic Filter Wheel for 1. 25 and 31mm Filters is certainly one of the smallest 5 position filter wheels in the world. it is also extremely lightweight, it weighs 300g only. Its housing is CNC machined from aircraft grade aluminium alloy. The stepper motor, that is the heart of any electronic filter wheel, is made by a reliable Japanese company,