At 12:32 PM 7/27/03, tOM wrote:
Was there ever an M 50/1.2?
No. The 50/1.2 was introduced very late in the OM system (1984 ??), was
multi-coated from the outset and has never had the "MC" marking as it was
created after the "MC" markings were dropped (1981 ??).
Its predecessor was the the 55/1.2 and I don't know if its lineage extends
into the original M-1 from 1972, but it goes back at least to 1974 when the
OM-1 "MD" was introduced. At that time (1974) the three "standard" lenses
were a 50/1.8, 50/1.4 and the aforementioned 55/1.2, all of which were
single-coated. There are supposedly two versions of the 55/1.2, neither of
which was multi-coated. The earlier version has a reputation for
yellowing, and IIRC two [??] of its glass elements contain slightly
radioactive rare earth elements in their glass formulation.
Don't ask me about the 55/1.2 serial number break between versions because
I don't know.
-- John
---- Quidquid latine dictum sit altum viditur ----
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