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Cleaning mirrors
Hi all,
My 11 yr old nephew was given a National Geographic Dobsonian (I suspect one of the cheapies from Aust Geo or Aldi, not sure of the model number as I forgot to check. He and his parents were complaining it did not work, so it has beeen left outside, partly undercover. When I looked at it, I discovered the focussing rack was jammed, so I freed it up and I was the best uncle ever, for it now worked! However, having been left oustide without a front cap the mirror has some dust and dirt on it. I assume it will be front surface silvered, so what is the best way to clean it? I do have special professional grade camera lens cleaning cloths. Is it possible to remove the mirror? There are some screws at the back which I assume will alow me to remove the mirror. If I remove the mirror, is it just a matter of popping it back in? Or will it need to be aligned? If so, how do I do that?
Regards,
Steve
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