Thanks. I do use a Bahtinov mask to focus on a star close to Saturn.I can usually get to less than 1 pixel in focus (I use bahtinov frame grabber to asses how close to focus I am). I rarely get decent seeing so it is hard to know for sure I have perfect focus.Could the soft images be due to collimation problems. I thought the scope was out of collimation so I fiddled with the collimation screws without really knowing what I was doing
and I think I may it worse.I am waiting for some Bobs knobs to arrive so I can replace the screws and try collimating again.Would love some input on collimation.