"Dust off"! That's the stuff and the technique... Thanks Rob! Quoting Rob Ratkowski Photography <ratkwski@hawaii.rr.com>:
Joe
Use dust off, 1st vent the nozzle of any possible propellant, then w/ a computer screen type cleaning cloth apply some 'lens cleaner' and gently wipe smudges, finger prints, etc. off. Or clean w/ dust off, soak some surgical gauze in home made cleaning solution, drag the opened gauze over the corrector, discard, do it over again till free of debris. We did the gauze technique on the mirror of a 16" RCOS that was coated in mold. We did remove the mirror from the scope and wash it 1st in a laundry sink w/ warm water and GlassPlus as suggested by the manufacturer. Bottom line, be gentle and you really don't need crystal clean optics.
Have fun Rob
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