Archived posting to the Leica Users Group, 2009/03/04
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 11:56 PM 3/4/2009, you wrote: >Would that make it, for those late ones, a special run. >It doesn't seem that they would of been part of the general run. I do not believe so. Leitz changed from marking lenses in cm to mm as noted during the 1960's. Leitz, as other manufacturers, produced lenses in batches. So, at some point, a given batch of 4/9cm Elmars was finished and the next batch, a year or so later, was marked "4/90". Zeiss guys would go wild at this and would hammer every possible serial number out of the woodwork to identify the batches between which the change occurred. I am a bit more relaxed on this and will simply say that I had forgotten how long the 4/9cm or, if you wish, 4/90 Elmar remained in production. Heck, there were even 573 LTM three-element lenses produced. I have let the LUG down twice over the past 48 hours, and I can only apologize. Dum Iove nodat, and I have been napping a lot lately! Marc msmall at aya.yale.edu Cha robh b?s fir gun ghr?s fir!