Thanks for the info. I have a 40.5 to 52mm step up ring installed to allow me to use 52mm screw in lens cap. This tends to cover the threads for the setting of f-stops. By removing the lens cap. I now have to put part of a finger into the adaptor ring to make contact with the f-stop setting ring. which is very narrow and knurled. Do-able but clumsy. Any suggestions? The disassembly instructions are most thorough but daunting to me.,Any recommendations for a competant [cheap] repairman? Thanks
BTW, the lens is for LSM while the sample is for Kiev. Any difference in disassembly? Just curious.