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C9.25 Corrector Lens Color

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Posted by Pedro on December 30, 2005 11:48:26 UTC


Hi all:

Im new in this forum so I say hello to everyone.

I have my first question, and sorry for my english, but Im from Spain and its not my home language.

I recentely purchased a Celestron C.925 sct, normal starbright coatings, and although I know a corrector lens MUST NOT be cleaned unless is full of dirt, it had some dust, so being a new scope, I wanted to have it "perfect" (Im such obsesive :=)), so I decided to first remove dust using an ear swinge and once done, I used a BAADER PLANETARIUM MICROFIBER "WONDER CLOTH", and with just my breath as a "distilled water source", and with very light pressure, cleaned it. Now, the corrector lens looks very clean and has no sleeks nor scratches, but when looking from a certain angle, I can see in a same area violet-blue patches, and purple-reddish ones. My question is: Did I damaged the coatings or one of the layers? As I know, the coatings on celestron scts a single ones, not multilayers.

greetings from Pedro-Rapaz

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