Quote Originally Posted by E. von Hoegh View Post
It will be marked "MC". At least mine is, as well as several other multicoated Zuikos I have.
AFAIK only during the phase of transition from singlecoated to multicoated when there were sold both types at the same time, the multicoated lenses were denoted by MC. Later, when all new lenses were multicoated Olympus dropped the term.