I've just bought a second hand Celestron 102 SLT, unfortunately when I try a selection of different eye pieces in it I get very wavy results. I've tried the same lens in a Celestron 70 travel scope and the a pin sharp.
When looking at the front there is a nasty smear and some finger prints, I've tried to clean these off but the seem to be on the inside.
So then i spent some time trying to see if there as any instructions on how to take this apart to clean the inside, or a diagram etc. Without luck.
I decided to see what came apart easily, and the dew shield screwed right off, and revealed these screws. I'm looking for guidance as to how to proceed. Or what are the risks with proceeding. I'm assuming that if I unscrew these I should be able to take this apart and clean the lens. And fingers crossed be able to put it all back together again.
Has anyone done this before, or know the process or where I can find diagrams before I plunge in?