Re: how to clean scope lens? or help doing it
Concur with Catshooter to use warm, not hot, water to gently rinse off the big stuff. I differ on the liquid detergent as it can mess with the lens coating also. Use the Lens Pen brush only to remove dust. Never wipe dust with a cloth or the Lens Pen leather pad. It is like sandpaper on the lens coating.. I would suggest photographic lens papers and lens solutions to clean what remains. They are cheap, readily available, and they are made specifically for this purpose. Go slow and easy. Hate to say it, but if you already used acetone, the damage might already be done and the lens might need to be re-coated. Just go ahead and finish cleaning and see how it looks.