Maybe Its my poor eyesight?

This is a hard question to put into words. If someone could email me I could explain further, but I bought a used Meade LX200 all seem to work okay, however I can't seem to get a clear focus. Maybe 90 percent? I have tried all eyepieces, etc. and the best focus is still not clear. I am farsighted, maybe I just need reading glasses?
Thanks, Ted [email protected]

This is interesting, I just got the scope, so I have no experience using it. I did not let it get to temp, it went from 65 to 50 degrees, and in 5 mins I was focusing. I was going to try all the suggestions posted this am but the clouds rolled in. How does the cooler work? Tonight? I will try letting it sit, to equalize, also the other ideas, and report back. Thanks,Ted

Ted what is the focal length of your LX200 or the aperture
diameter. Also what was the FL of your 10in.newtonian.One more question how far out of best focus are you turning the
focus knob when you check collimation.Try a 10mm ep to start
and only defocus enough to see maybe 3 or 4 defraction rings
keep the defocused image small. If you defocus too far, even an out of collimation scope will have the secondary shadow centered.