Archived posting to the Leica Users Group, 1999/10/27
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hi, guys! I own a Summicron ('60s vintage) and a Summarit 50mm for my M's. Recently, on the diaphragm's blades, I realized the presence of some kind of oily marks. Is that harmful to the optics or more importantly is it going somehow to be noticed on the images? It seems to me that the lenses performed great so far. Would it cleaning be a necessary option and would it be expensive? Thanks for comments and suggestions. Federico Agostini 101715.212@compuserve.com