You should probably use some of that compressed air they sell at camera stores to gently blow the dust off first. The finish of the corrector plate is critical to the overall view through your scope. With rifle scopes, we use compressed air first, and then move to a liquid cleaner to "float" the remaining debris away from the lense. I would think that is what you would need to do to your 12" Meade. Quoting Joe Bauman <bau@desnews.com>:
My outermost lens is pretty dusty on my SCT 12". (Sorry, I can't remember what it's called -- is it a corrector plate?) Would it harm my telescope to gently dust it off with a specialty cloth used for computer screens? Any suggestions? Many thanks, Joe
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