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Re: [OM] 50/1.4 MC serial#'s

Subject: Re: [OM] 50/1.4 MC serial#'s
From: "John A. Lind" <jlind@xxxxxxxxxxxx>
Date: Sun, 06 Oct 2002 13:38:31 -0500
This topic of 50/1.4 S/N's keeps resurfacing. I have three "MC" 50/1.4 lenses. One of them has a S/N <1M, and is decidedly different from the other two in coatings, although it is an MC. The other two have S/N 1,055,### and S/N 1,112,### puting them on each side of S/N 1.1M. Their front rings are marked with:
  1,055,###: "ZUIKO MC AUTO-S"
  1,112,###: "ZUIKO AUTO-S"

It is obvious the second one was made after Olympus stopped marking their MC lenses with "MC" and the newer one has a pair of fixed tabs on the back to protect the rear element. The older one has a single, rather wide tab on the back for the same purpose. That and the front ring marking are is the *only* differences I can tell between the two. There is *zero* detectable difference in element/group coatings and performance. Indeed, there is very little difference between performance of these two and the third one with S/N < 1M.

IMHO, performance among the 50/1.4 MC's is affected much more by condition of their glass, focus helicals and barrels.

-- John

At 05:52 10/6/02, Tom Scales wrote:
114 definitely is.  108 is likely.  I had one that was 108x but high, like
1088 or 1089 (don't remember) and I'm sure it was the last series.

Tomsharp

----- Original Message -----
From: "Mike" <watershed@xxxxxxxxxxxxxxx>
To: <olympus-digest@xxxxxxxxxxxxxxx>
Sent: Sunday, October 06, 2002 10:13 AM
Subject: [OM] 50/1.4 MC serial#'s


OK everything over #1.1M is the desirable version for sure. But wasn't
there some discussion that the actual cutoff was between #1.0M and 1.1M?
I now have a #1080xxx and wonderered which side of the fence it's on?
Anyone know how to tell?

Mike


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