And I have had time to reference other sites regarding the disassembly of the lens as well as getting the required tools. Everything was in place and i proceeded with instructions accessed from two sites ( http://www.pbase.com/pganzel/58mm_rokkor_disassembly and http://forums.dpreview.com/forums/re...7&changemode=1 Well... I ran into an issue e mediately.. won't go into details but .. I have access the aperture assembly and am in the process of cleaning them. I expect the re-assembly to be the proverbial %&%^& . Will keep you posted.