At 07:23 PM 5/10/2000 -0400, you wrote:
>I am considering purchasing a Zuiko 35-70mm f/3.5-4.5 zoom lens. It is
>marked "S ZUIKO." It was my understanding that when a letter preceded the
>word Zuiko, it meant the lens was single coated. However, when I checked on
>the two multicoating reference pages
>(http://brashear.phys.appstate.edu/lhawkins/photo/mc-sc.survey and
>http://brashear.phys.appstate.edu/lhawkins/photo/multicoat.txt), this
>marking for this lens is identified as MC. According to these pages, all of
>these lenses were MC. So, I have two questions.
>
>1) How can I tell if it is MC?
It is MC. Trust me. If not, look through the lens under a strong light
and look for green or aqua reflections.
>2) Does it matter?
Yes, it matters because differences matter. But the SC lenses (the
75-150/4 is probably the only zoom that is SC) are good too, and
occasionally better over a range of stops than the MC counterpart.
Devilish, ain't it? MC lenses are by definition newer. Lots of times that
is certainly better.
Joel Wilcox
Iowa City, Iowa USA
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