Additional Information on Zuiko Lenses
MF Zuiko tele-zoom lense 100-200mm f/5.0

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S-Zuiko AUTO-Zoom 100-200mm f/5.0

With a zoom range that spans from 100-200mm, a 2X zoom ratio with a slow effective aperture of f/5.0, it may easily lead you to believe that this is not an high end kind of optic. Well, it wasn't, although I wouldn't simply classify it as "economy lenses"# as with most OM users do because it does has its own market and specific group of target audience. This lense was primarily being designed to serve users with different kind of working budget and applications such as for students, casual weekend photographers and/or those who likes to travel light in outdoor events such as mountain climbing, tracking, scenic, landscapes and other kinds of general photography. Well, for the smart ones, if you bundle this lense with another popular 28-48mm Zuiko zoom, that is all you will ever need to fulfill most of your photographic needs covering from wideangle to telephotography.

This unusually compact zoom (148mm long and weighing 570g) covers the picture areas of separate 100mm, 135mm, 180mm and 200mm medium telephoto lenses. It features a one-touch focus/ zoom control to enhance easy and smooth picture composition, enabling the photographer to respond to quick actions without missing important shots. The only technical aspect you need to take note is, unless the lighting is favourable, it is always encouraged to use this lense along with a faster film types (such as ASA/ISO 200 or 400) to compensate for the lack in maximum lense speed.

<<< -- Credit: Image courtesy of Mr Alan House® <> who also operates a popular Ebay Store as well as his own photo site. Image Copyright © 2003. All rights reserved. Image has been retouch and scaled slightly for broadcasting use in this website. Please respect the visual property of the contributing photographer.

# Many OM users firmly believe a handful of Zuiko lenses in particular those which carry a "S" letter in front of Zuiko are designed specifically for budget users and termed them as economy series. Other Zuikos that carry with such inscription are S-Zuiko AUTO zoom 28-48mm f/4.0, S-Zuiko AUTO zoom 35-70mm f/4.0, S-Zuiko AUTO zoom 35-70mm f/3.5 ~ f/4.5 and S-Zuiko AUTO zoom 70-210mm f/4.5~f/5.6.

Next, Olympus actually advises in its user's manual that " .... it is necessary to confirm through the viewfinder that the subject is in focus after each zooming. The zooming/ focusing tube is designed to stop at a point off the index line to allow for precise focusing....". which means two things, first, despite the lense has a constant aperture of f/5.0, there may have a tendency in focus shift where refocusing after zooming is always encouraged. Next, the restrictive maximum aperture may also present some degree of focusing problem as the viewfinder may get dim while the split-rangefinder usually may get darken and you can only make use of a right choice of focusing types helps to improve/ensure ease in focusing. Olympus has suggested 1-1, 1-4, 1-6, 1-10, 1-13 and 1-14 where 1-6 microprism-clear field was in particular useful but depends on applicable OM bodies**, performance and/or comfort level may varies. This zoom lense can stop-down to a minimum aperture of f/32, this can be used for extended depth of field control when used in combination with compression of perspective which starts to be quite apparent at its longest zoom setting.

<<< -- Credit: Image courtesy of Mr JOEL Wilcox® <>. Joel has an excellent landscape photographic website on his own. Image Copyright © 2003. All rights reserved. Please respect the visual property of the contributing photographer.

Another interesting feature which relates to this lense is, this is one of the two* Zuiko zoom lenses that actually has Olympus stating officially that it is compatible with the 2X-A Teleconverter. In this case, if such combination is used, it will transform the lense into a possible 200-400mm f/10 super tele-zoom ! Well, although I doubt very much who would use in such a way as the effective working aperture of f/10 is simply hard to find suitable subject and condition to shoot with while on the other hand, as this zoom lense by itself only may cost ranging from USD70.00 -USD150.00** a unit (in mint, used condition) while a comparing Teleconverter may cost higher than the working lense ! Obviously, although I would love to think such "announcement" is workable and exciting but conventional wisdom may tell you it doesn't make any sense to call for such kind of additional investment other than you have already own a tele-extender in your personal collection. * Another unit is the Zuiko AUTO zoom 50-250mm f/5.0 MACRO ** Source: MacBroom's Camera Blue Book.

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Anyway, other than providing good factors in its compactness, lightweight and a moderate zoom range it can offer, this Zuiko zoom does have some delightful touch, firstly, it is being multicoated for faithful colour rendition, minimizing chances of ghosts and flare when used in unfavorable shooting situation such as shooting in a backlit scene; next, the one touch zoom does conformed to OM standard with its reasonably well built quality and lastly, it is easily ranks as the most affordable zoom lense supplies under a major manufacturer's label. Come to think of it, this Zuiko lense can easily be transformed into a 3X zoom such as 100-300mm but I am still puzzled why Olympus never did that where I think such possible zoom range should appealing to a larger group of users.

<<< -- Credit: Image courtesy of Mr Alan House® <> who also operates a popular Ebay Store as well as his own photo site. Image Copyright © 2003. All rights reserved. Image has been retouch and scaled slightly for broadcasting use in this website. Please respect the visual property of the contributing photographer.

Technical Specification for S-Zuiko AUTO-Zoom 100-200mm f/5.0

Lense type:
One touch tele-zoom design
Focal length:
Maximum aperture: 1:5.0
Lens construction: 9 elements in 6 groups
Picture angle: 24° (f=100mm) - 12°(f=200mm)
Automatic, full aperture metering
Aperture scale: f/5.0~ f/32
Distance scale: Graduated in meters and feet from 2.4m (7.9 ft) to infinity

100200mmf5optic.jpg 100200zoom.jpg
The focal length markings are marked in green.

Focusing: Rotating helicoid focusing system, by turning the focusing ring
Zooming: push and pull control via single zooming/focusing ring
Filter attachment size / Filter(s): 49mm, Screw-in type
Lens hood: Built-in retractable type
Compatible Tele-Converter(s):
Minimum photographic range: 46cm x 69cm (0 8.1 " x 27.2")@100mm; 25cm x 37cm (9.8" x 14.6")@200mm
Maximum reproduction ratio: 1:3 @ its closest focusing distance at 0.85m at 200mm setting
Length: 148mm (5.8") at 200mm setting
Maximum diameter: 63mm (2.5")
570g (20.1 oz)

Recommended Focusing Screens: 2-4**, 2-13**,1-1*, 1-2*, 1-3*, 1-4N**, 1-6#, 1-10*, 1-13* and 1-14*. * Compatible. #Can be used. They will provide for accurate and easy focusing but meter built into the OM-1 and OM-2 (on MANUAL) will not indicate correct light readings. With the OM-2 on AUTO, correct exposures are made on the film, but the meter needle does not give correct light readings.** Compatible, only with applicable OM bodies introduced at later stage.*** When used with the Teleconverter, recommendable focusing screen is type 1-2 or 1-4.

Zuiko AUTO-Zoom Lenses - Main Index page

| S-Zuiko AUTO Zoom 28-48mm f/4.0 | Zuiko AUTO Zoom 35-70mm f/3.6 | S-Zuiko AUTO Zoom 35-70mm f/4.0 | Zuiko AF AUTO Zoom 35-70mm f/4.0 | S-Zuiko AUTO Zoom 35-70mm f/3.5 ~ f/4.5 | S-Zuiko AUTO Zoom 35-70mm f/3.5 ~ f/4.8 | Zuiko AUTO Zoom 35-80mm f/2.8 ED | Zuiko AUTO Zoom 35-105mm f/3.5 ~ f/4.5 | Zuiko AUTO zoom 50-250mm f/5.0 | Zuiko AUTO zoom 65-200mm f/4.0 | S-Zuiko AUTO zoom 70-210mm f/4.5 ~ f/5.6 | Zuiko AUTO Zoom 75-150mm f/4.0 | Zuiko AUTO Zoom 85-200mm f/4.0 | Zuiko AUTO Zoom 85-250mm f/5.0 | S-Zuiko AUTO Zoom 100-200mm f/5.0 |

A Brief overview on Zuiko Optics
Zuiko Fisheye Lenses
8mm f/2.8 Circular Fisheye | 16mm f/3.5 Full Frame Fisheye
Zuiko Ultra-Wideangle Lenses
18mm f/3.5 | 21mm f/2.0 | 21mm f/3.5 | 24mm f/2.0 | 24mm f/2.8
Zuiko Wideangle Lenses
28mm f/2.0 | 28mm f/2.8 | 28mm f/3.5 | 35mm f/2 | 35mm f/2.8 |
Zuiko Standard Lenses
40mm f/2.0 | 55mm f/1.2 | 50mm f/1.2 | 50mm f/1.4 | 50mm f/1.8 | Zuiko 50mm f/2.0 PF
Zuiko Medium-Telephoto Lenses
85mm f/2.0 | 100mm f/2.0 | 100mm f/2.8 | 135mm f/2.8 | 135mm f/3.5
Zuiko Telephoto Lenses
180mm f/2.0 EDIF | 180mm f/2.8 | 200mm f/4.0 | 200mm f/5.0 Auto-T (brief)
Zuiko Super-Telephoto Lenses
250mm f/2.0 EDIF | 300mm f/4.5 | 350mm f/2.8 EDIF | 400mm f/6.3 | 500mm | 600mm f/6.5 |1000mm f/11.0
Special application Zuiko optics:
24mm f/3.5 Shift | 35mm f/2.8 Shift | 500mm f/8 Reflex | AF Zoom 35-70mm f/4.0 | Zuiko 50mm f/2.0 PF

Tele-Converters: 1.4X-A / 2X-A

Zuiko Macro/Close focus lenses: Zuiko AUTO MACRO 20mm f/3.5 | Zuiko AUTO MACRO 20mm f/2.0 | Zuiko AUTO MACRO 38mm f/3.5 | Zuiko AUTO MACRO 38mm f/2.8 | Zuiko AUTO MACRO 50mm f/3.5 | Zuiko AUTO MACRO 50mm f/2.0 | Zuiko AUTO MACRO 1:1 80mm f/4.0 | Zuiko AUTO MACRO 90mm f/2.0 | Zuiko AUTO MACRO 135mm f/4.5

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Maintainers for OM Zuiko Site & Message Board: Rick Oleson (Email: Website:, Bruce Hamm (, John Orrell (, Simon Evans, (; Shaun (, Andy Radcliffe (

Special thanks to: Gregory P. Logiodice, Bob Gries, Erwin Voogt, Joel Wilcox, Rick Oleson, Simon Evan and many others for granting permissions to use their images of either lenses, cameras and own pictures appeared in this Zuiko website.

Credit: My old time buddy, Ahmad Ikram, Dr of Rubber Research Institute (RRI), Malaysia who shares the same passion with me and also lending his OM-1n, OM-4 and the Motor Drive 1 to me for preparing some images in this site; Mark Dapoz <>for reminding some broken links; Mr Poon of Foto Poon, Ipoh, Mr Richard, Ampang Park, Mr Lim and Miss Jenny of Foto Edar for their generosity for their OM1(n), OM2n camera and some Zuiko lenses. Mr Hans van Veluwen for mistakenly using some content earlier from his OM website; J Sorensen for providing some useful images to rectify some technical "flaws"; Mr Gen Holst for helping during the early stages of development of this OM site; Mr KKLow for some of his earlier images on the OM-1appeared in this website; Miss Wati and Mirza for helping me to convert this Operation Manual into a HTML format. Mr MCLau for rectifying some mistakes made on the earlier preview sites. A personal tribute to the creator of the OM system and also a site dedicated to all the fans of Olympuses and Zuiko Optics worldwide. Some of the content and images appeared in this site were scanned from OM official marketing leaflets, brochures and instruction manual(s) for educational purposes. Olympus is a registered trade name of Olympus Optical Inc., Japan. Site created 'unfortunately again with an IMac.