Hi Andre:
> According to Paul Farrar's guide these lens have the same optical elements,
> namely 6E 4G.
I compared the optical cross-sections in The Olympus OM Way (lens has the
preset diaphragm) to the Olympus OM System Lens Handbook (lens has the auto
diaphragm). They are slightly different. It is correct that the 6E 4G is
characteristic of both.
Gary Reese
Las Vegas, NV
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