ZWO EFWMini 5 Position Electronic Filter Wheel for 1.25 and 31mm Filters lx Rubber armored for improved ergonomics

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

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

Outer Connection (Lens sided): Thread

For the intermediate visual observer and beginning astroimager

ZWO EFWMini 5 Position Electronic Filter Wheel for 1.25 and 31mm Filters lx Rubber armored for improved ergonomicsZWO 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,