We went through this before. The Zuiko 300/4.5 does not have ED glass.
Please see FAQ page at: http://brashear.phys.appstate.edu/lhawkins/
at section L2.
Jim Terazawa
Kurt Hurley wrote:
> C.H. Ling,
>
> The Zuiko 300/4.5 is an ED design and very sharp, though I haven't put it
> head to head with Leitz or Nikon 300's. You'll need a body with mirror and
> aperture prefire for the best results at slower shutter speeds.
>
> At 10:12 PM 12/16/99 +0800, you wrote:
> >
> >Hi Joseph,
> >
> >Have you tried the Zuiko 300/4.5 ? besides the difficult in handling (due
> to non
> >IF design), I personal feel this lens is very sharp and excellent in
> color. You
> >also forgot to mention the 180/2 which should possess the same high quality
> >as the 250/2 and 350/2.8.
> >
> >C.H.Ling
> >
> >>
> >>As far as quality, I have owned Pentax screw mount, Canon FD mount,
> >>Leica R mount, Agfa, and Olympus 35mm SLRs, and have used Nikon's.
> >>
> >>Up to 100mm, Olympus lenses can rival and in some cases exceed what
> >>other vendors can supply. The 50/1.8 Zuiko's I have had and have have
> >>all been sharper than the 50/2 Summicron-R I had with my Leica R3.
> >>
> >>Beyond 100mm, Zuikos have a harder time standing up to direct side-by-side
> >>comparisons with Nikon telephotos. Clearly, Olympus is capable of making
> >>state-of-the-art telephotos, witness the 250/2 and 350/2.8, but most of
> >>their more normal sorts of teles are older designs that have not been
> >>updated to run with the pack.
> >>
> >>Joseph
> >
> >
> Kurt Hurley IDS 2000 Product Marketing Manager
> Schlumberger T&T - Diagnostic Systems
> 1601 Technology Drive San Jose CA 95110
> email khurley@xxxxxxxxxxxxxxxxxxx
> PH 408-437-5156 FAX 408-437-9031 PG 408-699-4587
>
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