Archived posting to the Leica Users Group, 2002/01/24
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]E. Lo wrote, >> Recently I acquired a Leica M f2/35mm Summicron pre-asph. Comparing >> with other M lens in my collection the focusing ring on this one feels >> very tight, like a fluid pan head set to high resistance. >> >> Could aged lubricant or lubricant+dirt be the cause ? What is the best >> thing to do about this ? >> On the barrel there don't seem to be any sign of it having received a >> major impact so as to deform the focusing ring. >> >> The serial n. of this lens is 3396XXX, supposedly made around 1986. >> Previously a fellow LUGer had kindly told me that this is the 4th >> version. Do all lens in this category have tough fousing rings? Not true of my sample of one. As it happens, my pre-asph 35/2 is also a serial number 3396xxx. The focus ring moves easily and smoothly, with just the right degree of "fingertip" resistance for use with the focusing lever. It may be time to treat yours to a CLA. Peter Choy. - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html