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Olympus OM-System S Zuiko Auto-Zoom 100-200mm f/5 lens

JDM von Weinberg , Jan 09, 2012; 07:09 p.m.

Olympus OM-System S Zuiko Auto-Zoom 100-200mm f/5 lens

Another inexplicable miss for Kadlubeks Objektiv-Katalog, which does not list it.

It's another of those 'can't pass up a bargain' stories.
On another thread somebody asked for recommendations for lenses for an Olympus OM-1 series body. I made some suggestions but got curious what the lenses I had bought last year were going for now, so over to the KEH site. There it was. A BGN 100-200mm f/5 lens for only $31. Since that was only a "two-pizza" buy, I thought what the heck, and besides I was curious about the BGN rating.

Well, it came in only a couple of days (I'm not all that far from GA, where KEH seems to be located) and when I opened it up, it looked close to "new, old stock' in appearance to me. If this one is any indication, KEH really is very. very conservative in their ratings. It was clean, the white lettering un-besmudged, and everything worked smoothly. By the way, Zuiko 瑞光 seems to mean 'auspicious light', and this one lives up to the name.

There are good discussions of the lens at the Mir site ( (link) ) and pictures of its results at other sites like ( http://www.photosig.com/go/photos/browse;jsessionid=aRb7Fgd2Aik4EElkm3?id=36694 ).

This was another 'bargain' lens for Olympus. It was introduced sometime in 1981-2 -- B&H in their ad of March 1982 list it as 'new' with a call for price. By June of 1982 they listed its price as $169, less than half the price of the 85-250mm f/5 (at $389).

Zuiko 100-200mm f/5 on an Olympus OM-1 MD.


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JDM von Weinberg , Jan 09, 2012; 07:12 p.m.

Its specifications are

  • 9 lenses in 6 groups,
  • auto diaphragm f/5-32,
  • 2.4m closest focus,
  • mass 570g,
  • 149mm long (w/o hood) 63mm widest,
  • built in extending lens hood,
  • 49mm filter

Zuiko 100-200mm f/5 9/6

JDM von Weinberg , Jan 09, 2012; 07:13 p.m.

now have a good working set of modest lenses for my OM-1 MD camera. Zuiko 35-70mm f/4, Zuiko 50mm f/1.8, and now the 100-200mm f/5.

Olympus kit - also have an OM system T-mount

JDM von Weinberg , Jan 09, 2012; 07:14 p.m.

The question was where should I go for a try-out? It was an exceedingly dull winter day, but then I thought - this is a good day to stay home and maybe the Canada Geese at the nearby national wildlife refuge would feel that way too. We have some hides and stands for viewing the areas they normally congregate in.

When I got there, the pickings were slim, though. It turns out, as is so common in the last few years, the weather north of 37ºN has just been too mild to push the Hudson's Bay geese to the south. Besides, so many of the critters have decided that it's pretty nice here year around. The Wildlife Service people told me that perhaps as few as 300 geese have come to us so far this year.

The in-camera meter seems to work, but the mercury battery in it had only a faint whiff of power left, so I just metered with my Gossen Luna-Pro SBC. Lighting was very dull and consistent so ended up mostly shooting 1/250 at f/8 on a monopod. I used Walgreen's ISO 400 film, which seems to be Fuji 400.

Here is a view of some of the geese in the air over the feeding/pond area

Crab Orchard Wildlife Refuge (mostly for Canada Geese)

JDM von Weinberg , Jan 09, 2012; 07:17 p.m.

As it happened, they were too shy today to come in close enough for even the 200mm. This is as close as I could get. Next time I go out there, I'm taking one of my 500mm mirror lenses.

Canada geese grazing - this area is planted and flooded for the geese

JDM von Weinberg , Jan 09, 2012; 07:18 p.m.

Here's a causeway across the Crab Orchard Lake next door-

it's where the buoys are, at least

JDM von Weinberg , Jan 09, 2012; 07:19 p.m.

and a study in gray of one of the older Refuge storage buildings

closer in with the Zuiko -

JDM von Weinberg , Jan 09, 2012; 07:20 p.m.

That's all folks. It's a decent, but not spectacular, zoom telephoto. It does need a fast film to overcome the limitations of a wide-open f/5.0. In the age of hi-ISO digital, I had forgot how unforgiving film was for such a lens. At 2.4m closest focus, it's also no "macro," even in the generous terminology of zoom-telephotos. For the money, however, it's something I will get use out of. The Olympus camera feels so very small, even with this lens on it.

The lens hood simply pulls out, by the way. The lens focuses by turning the knurled area, and it zooms by pulling on the front of the lens.

Mike Gammill , Jan 09, 2012; 08:26 p.m.

Great job, JDM. Top notch results. The 100-200 range is often associated with budget lenses, but your lens doesn't seem like a budget lens. Thanks for posting.

Louis Meluso , Jan 09, 2012; 09:11 p.m.

It may be a budget lens but it gives you some decent reach. Perhaps not enough for wetland type shooting but for everyday stuff it's plenty. My Oly 65-200mm f/4 is all I'll likely need. Using the monopod was a good idea. Can't beat the price and KEH came through with a nice example.

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