M42 Extension Ring (2") - 40mm evolution Total height: 510 mm

Total height: 510 mm

This adapter kit allows the ZWO EAF to be connected to various Celestron C8/C9

so the telescope cannot accommodate a conventional eyepiece

The chosen star shouldn´t be positioned in the center of your live view

M42 Extension Ring (2") - 40mm evolution Total height: 510 mmThis 40mm extension tube is very helpful if your focuser doesn't have enough back focus, particularly in astrophotography where back focus is critical. Spec: Material: Barrel made of black anodized metal Telescope side: T2 female thread (M42x0. 75) Camera side: T2 male thread (length 4 mm) Optical path length: 40mm excl. male thread