M lenses: How often do they need a CLA or overhaul?
I Google searched that question and could find no definitive answer. I have searched this forum and found no answer, definitive or otherwise.
Some M users say an M camera should be overhauled once for every ten years of average use (however you define average use) - more often for rampant shooters like photojournalists who may make 100,000 or more images in a year (yes, I know that precious few photojournalists work with M cameras these days).
In thinking about this, it occurred to me that M cameras have significantly more moving parts and more total parts that can malfunction/break/wear out than M lenses do. So does the ten year suggestion apply to lenses, too? Or is "if it's not broken, don't try to fix it" the principle to apply to CLAs or overhauls for lenses?