Hi all, I recently bought a used Celestar C8. It was not abused but perhaps a bit neglected. I see some smudges etc on the front corrector. I've seen some methods for cleaning but wondering how risky it is. I don't want to make it worse. also, the focus knob seems to catch once per revolution in the same spot. Is this normal? Is it a common problem? is it something that me a novice can fix?
any help greatly appreciated. also any tips that will help me get the most out of it
Thanks in advance, Jerry Mead
any help greatly appreciated. also any tips that will help me get the most out of it
Thanks in advance, Jerry Mead