i was given a Zennox 900/60 Refractor Telescope but there was a lot of dust particles
on the inner parts of the front lens glasses, now for the bad bit i un-screwed the plastic ring that hold the lenses in place
the first lens dropped out onto a cloth easy then a very thin plastic spacer the lens behind it was tight but did come out
the front lens was thinner in thickness than the one behind it.
stupidly now i don't know what way round they go when putting them back in.
i know the thicker of the two goes in first but i don't know what way the crown curved parts go on the lenses
any help would be really kind
ps just like to say hello, nice to be here and get some good help and advice on the forum