Found on FB
https://www.mavidon.com/upload/produ...6yU7T0nY2qLY-E
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thats the best way to clean lenses.
love the smell of it too.
Years (and years) ago, before wet plate photography was popular, I read somwewhere that this was the method optics shops cleaned the large front surface mirrors on telescopes prior to re coating them with aluminum.
You can even clean your glass plates with old collodion left overs.
Most effective way to clean glass