Squaring a focuser
Posted: Sun Jun 28, 2020 2:16 pm
About a month ago, I installed a new FeatherTouch focuser. Evidence in recent images suggests that I need to tweak the focuser tilt. The FT has adjustment screws for this purpose.
How do I go about doing the adjustment? Test images or eyepiece viewing? Long or short focal length eyepieces? Use a collimation cap? An suggestions or procedures welcome.
Oh, it's anf/ 4 Newtonian.
How do I go about doing the adjustment? Test images or eyepiece viewing? Long or short focal length eyepieces? Use a collimation cap? An suggestions or procedures welcome.
Oh, it's an