I've personally seen that serial no. 1,091xxx is labeled ZUIKO MC
AUTO-S. Serial no. 1,139xxx is labeled ZUIKO AUTO-S.
Unfortunately I don't think everyone who took part in the lens survey
reported the nomenclature completely. Serial no. 1,013,8xx appears to
have been carefully reported and lists ZUIKO MC Auto-S. Serial no.
1,130,xxx also appears to have been reported carefully as ZUIKO
AUTO-S.
The transition from ZUIKO MC AUTO-S to ZUIKO AUTO-S appears to have
occured between 1,013,xxx and 1,130,xxx
-jeff
On 12/18/06, Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
> I just sold one to Jeff Keller which is marked:
> OLYMPUS OM-SYSTEM ZUIKO AUTO-S f=50mm 1:1.4 11669xx Japan
> He can't respond about this one since it's with JH for a CLA before
> going on to Jeff.
>
> I thought I had reported the data on this lens for the multicoating lens
> survey but apparently not. My copy of the survey results don't include
> this lens. But the other 3 high serial numbers above 1,100,000 listed
> there also do not say "MC". This lens has a serial number higher than
> the others listed there so should serve to extend the range. The other
> high serial number lenses reported there were; 1101300, 1130420 and
> 1159000 (0 as the last one or two digits is probably a place holder in
> the survey report) It could also be that there is a later copy of the
> MC lens survey that I don't have. Mine is dated May 9, 1999. My how
> time flies.
>
> Chuck Norcutt
>
>
> Roger Key wrote:
> > Regarding the 50/1.4, I believe that there are three main variants
>
> > Can anyone confirm that those over 1.1 million are not marked MC? I do not
> > have one, but have an 'MC' with serial number 1,064,1xx.
> >
>
>
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