Ive been picking up various old primes off ebay. Some in great condition, others not so wonderful. Ive been fairly successful in taking a few apart that were more egregious and cleaning them out. Ive been using lens paper and some generic cleaning fluid, but im struggling with lint/dust residue using the paper. Does anyone have any recommendations for cleaning off older lense elements? A good soap or cream to clean off fungus that wont damage any coatings? Also, do you prefer micro fiber clothes or lens paper? Any tips would help!