Hi, I have a f/4.8 12" reflector and i wondered if anyone knew what would be the highest magnification i could (realistically) use with a telescope that has a short f/r like mine.
My highest ep is currently 9mm, is it worth getting something around a 6mm for planet use but im not sure if I will be able to focus at that magnification?
Any ep suggestions or advice for fast scopes please!
Cheers, Ben
