I have never come across a product that can turn even a lightly soiled camera lens into a perfectly clean one. This is no exception. However, they work quite well as one step in a multi-step process. You need a good cleaning cloth, a pair of blowers and a brush in combination to clean the optics perfectly. Blow/clean the lens first. Then swipe with one of them. I find it very helpful to open these first and then clean the lens of dust so that some of the liquid evaporates first. After wiping one of them, hit them with a rag. Clean/bleed as needed. I actually use a lens pen and part of it with charcoal cleaner after a Zeiss wipe for maximum cleaning. These things also leave lint, although not as much. If they rub against the lens barrel, they can break and something else, so be aware of that. Overall this is a good product but be aware that you need more than just camera lenses. I think with phones and glasses they will probably be good as a one stop solution. Camera lenses require more patience and effort.
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