أنبوب تمديد Apertura ذاتي التمركز 50 مم - 2 بوصة - SCEXT50-2

My focuser was bottoming out with my heavier eyepieces, so this 50mm tube gave me just the extra backfocus I needed. The self-centering collar grips the barrel evenly, and the whole thing feels rock solid once tightened down.

The CNC machining is so precise that the tube threads on smoothly without any wobble, and the self-centering really helped keep my eyepieces perfectly aligned. I’ve noticed a definite improvement in focus with my longer focal length eyepieces now that I have that extra 50mm of reach.

This added the 50mm of focal length I needed without adding any noticeable flex to the focuser drawtube. The self-centering collar grips the 2" eyepiece evenly and keeps everything aligned, which is exactly what I was hoping for.