Gary,
I have three 50/1.4's, all multi-coated. The first S/N is between 770k and
1,000k, the second is 1,055k, and the third is over 1,100k. The second and
third have the same form of multi-coating; I cannot tell the difference
between them. The first, with < 1,000k S/N, has multi-coating but not on
all the elements. Its coatings are noticeably different from the other
two. My conclusion is the "break point" in how much of the 50/1.4 lens is
multi-coated is not at S/N 1,100k, but some point earlier than that.
-- John
At 23:06 3/23/01, Gary Reese wrote:
The updated lens tests show a correction in the serial number for the
best performing 50mm f/1.4 Zuiko. It is the fully multicoated one with
numbers >1,100,000. The 50mm f/1.4 Zuiko MC lenses from about 770,000 to
1,100,000 have less than full multicoating and appear to have marginally
"poorer" (but still quite good) performance than the >1,100,000 and
significantly better performance than the <770,000 G.Zuikos.
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