Does cleaning solutions deteriorate lens/filter coatings?

Started Mar 9, 2013 | Questions thread
OpticsEngineer Veteran Member • Posts: 6,389
Re: Does cleaning solutions deteriorate lens/filter coatings?

30 years ago lens coatings were quite soft and even incidental contact was something to be avoided at all cost.  Cleaning was advised only in the most dire situations.   Coatings are a lot harder now and can withstand cleaning with materials designed for that purpose.   But things like paper towels and Kleenex actually contain small particles that are harder than the coatings.  Cleaning with things like that can put on some scratches pretty quickly.

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