Can I use Window cleaner (Colin) to clean fungus from old manual lenses? I've used it before on the surface but now I've run out of lens cleaning solution so I was wondering if I can use it to clean fungus since I am dismantling few old Manual focus lenses and cleaning the inner elements now. I've read somewhere that it destroys the lens coating but I've not notice (obvious) damage to the glass. Instead they look sparkly clean and also non static. Can someone tell me why I shouldn't use or if it is okay to use the glass cleaner on lens for fungus cleaning? What is the composition of the glass cleaner vs lens cleaner? Does it make any difference? Thank you.