Hello,
I was wondering what is the actual limit on how wide you can go with a scope. I currently have a nice 28mm, 2 inch eyepiece and love the nice wide field views it gives. The scope itself is a 12 inch Newtonian that has a focal length of 1500mm, f/4.9.
I have heard that the widest you should go is approximately 1/5th your focal length. Then you may get interference, I am not sure what you call it but basically the reflection of the primary mirror begins to appear in the eyepiece and can really ruin to wide a view.
I am still relatively new to the eyepiece game so any advice will be great. I get the basics eye relief, focal length, magnification etc. Just checking out my limitations
