Sometimes ago I have read on an Olympus OM brochure that the last version
of the 180mm f 2.8 engraved "Zuiko" is a lens made with "special optical
glass".
Can somebody tell me something concerning this matter ?
Is this "special optical glass" something like LD or SD glass ?
Does anybody know the differences on performance between the two 180mm f
2.8 lenses, the first one engraved "Zuiko MC" and the modern ("special
optical glass") engraved "Zuiko" ?
Thanks.
Ángel Lobo.
CUENCA (Spain).
angel.lobo@xxxxxxxxxx
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