Alan Chan http://www.pbase.com/wlachan
I think that any lens cleaning fluid which contains surface detensioning agents (surfactants) is to be avoided. In plain speech, that's your typical dishwasher agent, and such concotions using it in cleaner form sold for higher prices.
Why?
Because surfactants are notorious for sticking on any surface, including metal, glass and plastic, over some period of time. And because of their properties (they are, after all, surfactants) ,you are unable to remove them.
Anybody developing film themselves will tell you that the surfactants used for developing film without water marks will over time leave a sticky residue even on stainless steel reels.
I would be a little afraid what that buildup might do on my lens fron element.
Frantisek
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