opacitiy on a lens
Yesterday, looking through the rear elements of my 480 symmar s after a cleaning oprations, I noted, on a very carefully inspection, some opacity between the lenses. It is something very similar to a glass wiped with a wet rag and then not polished with a dry one. In addition I must say this opacity not cover the whole surface of the lens, but only a little less than an half and is very difficult to detect, only in particular against light conditions. Can this opacity affect the performance of the lens? How can I eliminate this problem?