Gary Reese wrote,
<<The multicoatings are formulated so that they match the coatings of
the
other
elements. It is an optical design and manufacturing balancing act and
no
small feat. Hence, you can't replace an element in a single coated
Zuiko
with
a multicoated one. It has to be another single coated element.>>
Then Charlie wrote:
"How would this affect a single coated lens with a multi coated filter?
It would in effect be added glass with a different coating."
It wouldn't. A filter is a plane parallel element (meaning it has no
optical power). Thus, all coatings do is change its light transmission.
However, otherwise clear multicoated filters can change the color
balance of a lens slightly. Probably not enough for you to notice in
everyday work, though.
Cheers,
--Lee
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