Yashica ML 28-85mm - Group 1 Cleaned   The cleaned lower lens of the optical block. There is still a minute amount of haze on another element in this group, but it isn't severe enough to warrant removal and cleaning. I always use at least 3 full rounds of R.o.R. solution in an apply/clean-off/buff routine to finish any haze removal, with a new swab on each pass.