Quote:
Originally Posted by Startrek
I’ve used isopropyl alcohol on eye pieces and finder / guide scopes as find it leaves a very faint smear , I can never get a super clean clear surface , maybe I’m doing something wrong , so use a microfibre cloth with good results
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I agree with your experience using isopropyl alcohol Martin. 20 years ago I had the remains of a bottle of hospital grade isopropyl from a chemist. That stuff never left a smear when used with surgical cotton wool. It was lost in a house move so I used another brand of isopropyl and had the same smearing problem as you ever since. It makes a mess and it's marked as 99.9%.
I've since moved onto ROR (Residual Oil Remover) drops with Roscoe wipes and a hurricane blower and like the results. I researched for ages before I settled on this solution.