There are "MC" lenses when it said MC on the name ring (like 50mm f1.8 type
3) and NMC after MC was removed from the name ring (50mm f1.8 type 4).
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John Hermanson www.zuiko.com
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Camtech, Olympus Sales & Service since 1977
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----- Original Message -----
From: "Daniel Tan" <daniel.tan@xxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Thursday, August 21, 2003 10:26 AM
Subject: RE: [OM] 75-150 f/4 MC Exists..., not sure about 55 f/2 and 135
f/3.5
> Thanks for the update Lee.
>
> The guy still absolutely insists that it's a MC.
> I've wound up emailing Olympus (japan) to see if they can clarify. Which
> I doubt they will. We'll see.
>
> Regards
> Daniel
>
> -----Original Message-----
> From: owner-olympus@xxxxxxxxxxxxxxx
> [mailto:owner-olympus@xxxxxxxxxxxxxxx] On Behalf Of R. Lee Hawkins
> Sent: Friday, 22 August 2003 12:14 AM
> To: olympus@xxxxxxxxxxxxxxx
> Cc: lhawkins@xxxxxxxxxxxxxxxxxxxxxxxxxx
> Subject: [OM] 75-150 f/4 MC Exists..., not sure about 55 f/2 and 135
> f/3.5
>
>
> Hi all:
> See the following link:
> http://olympus.dementia.org/Hardware/PDFs/75-150mm_f4.pdf
>
> This is a parts diagram from Olympus for the 75-150 f/4. It lists two
> versions of the elements, a "C" version, which indicates "coated", and
> an "NMC" version, which seems to indicate "new multicoated". From
> looking through the parts diagrams Mark has on the page, it appears
> Olympus had at least 3 types of coating:
>
> C: single coating
> LC: single coating (perhaps the same as "C"?)
> MC: The original multicoating process
> NMC: A newer multicoating process.
>
> The sheets on this page for the 55 f/1.2 and 135 f/3.5 only show single
> coated elements. While I take this as a strong indication that there
> weren't any MC versions of these two lenses, am I certain of that?
> Absolutely not. The parts diagrams on Mark's page may not be the most
> current one for these lenses, which may mean a later versions were MC.
> I know I am guilty of it myself, but as I get older, the more I realize
> one has to be very careful before saying something is "absolutely not
> true"... :)
>
> Cheers,
> --Lee
> ________________________________________________________________________
> R. Lee Hawkins lhawkins@xxxxxxxxxxxxxxxxxxxxxxxxxx
> Observatory Engineer hawkinsrl@xxxxxxxxxxxx
> Dept. of Physics & Astronomy
> http://brashear.phys.appstate.edu/lhawkins
> Appalachian State University Ph. 828-262-7331
> Boone, North Carolina 28608 FAX: 828-262-2049
> ________________________________________________________________________
>
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