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Jim Rand

Celestron 6SE Dirt on rear mirror

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Hiya,

Bit of a beginner here so be gentle. :)

Went for a session at the weekend, and noticed when I looked into the telescope what appeared to be a lump of dirt on the large rear mirror (eyepiece end) about the size of a pea.  It didn't really appear to have much effect on what I could see, but I suspect that's because I'm a new user, and probably not aware of what difference it can make?

Anyway, is this something a beginner can attempt to sort out, or should I take it to a dealer as the manual suggests?

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Unless somebody more knowledgeable responds, either take it to a specialist dealer and brace yourself for a significant bill, or leave it alone on the grounds that the scope already has a large secondary partially blocking the mirror.  Do not try to dismantle it yourself.

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Thanks for your reply.  I'm attending a star party at Herstmonceux at the end of August, so will probably seek advice there.

Thanks again.

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Any chance of posting an image of mirror and dirt. The visual back must have been left open to the elements (weather) for a time and something bulls eyed a mirror

Edited by LukeSkywatcher

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