Additional Information on Olympus Zuiko lenses
Macro Photography with Zuiko lenses - Part 3

 
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Zuiko MC MACRO 50mm f/3.5 (Current Version with brief info on older versions)

Generally in close distance photography, a standard focal length lense is used in conjunction with attachment lense or auto bellows. Unlike the other two early Zuiko macro lenses that were designed specifically for high magnification photography but require a medium in Auto Bellow/Extension Tubes to focus; this Zuiko Macro f/3.5 has a different lens configuration as to both of the Zuiko Macro lenses at 38mm and 20mm as it has a Helicoid focusing to enable it to use as a normal 50mm standard lense. It is designed primarily for close focusing to meet the photographer's most exacting definition demands for close-ups, copying work and macro -photography.

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Usually in lenses of this type the lense barrel tends to become elongated at the closest focusing distance, but the design of this lense made a very compact configuration possible. Additionally, this was the first time that an automatic correction lense group that compensates for close distance aberrations has been built into a Zuiko macro lense. Because of this unique design, this lense produces resolution comparable to that of a standard or normal lense throughout the focusing range. Along with its rigid physical construction and superb lens handling characteristic, it stands to assist photographers who may often have to work in rough terrain and/or shooting on locations. It has excellent features to provide visual aid essential for quick shooting reference, it is highly portable as it is light, compact and highly versatile.

<<< -- Credit: Image courtesy of Mr Michel Freylich® <mic67@qc.aira.com>. Image Copyright © 2003. All rights reserved. Please respect the visual property of the contributing photographer.

The lense is designed for optimum performance at 1/10 magnifications, it gives superb results in general purpose photography at infinity, or for macro subjects as large as 1/2 life-size. With an Auto Extension Tube 25, it extends the limitation from 1/2 to 1:1 life size (But to get best results. Olympus recommends using the alternative Zuiko 1:1 Macro 80mm f/4.0 in conjunction with Auto Bellows) and can be used for even higher magnifications with the Auto Bellows or Telescopic Auto Tube when other macro lenses are not to hand.

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<<< -- Credit: Image courtesy of Mr BOB Gries® <gries@nothingrhymeswithorange.com> . Bob has a website on his own. Image Copyright © 2003. All rights reserved. Please respect the visual property of the contributing photographer.

As this Zuiko Macro lense has a very long history which can traced back to introduction of the OM system in the early seventies. There might be quite a few versions which involved facelift and/or cosmetic changes. However, the basic lense design such as optical formula has not been altered but could/may have involved lense coating process used.

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<< -- Credit: Image of this older version of the Zuiko Macro lense was specially taken Mr Rick Oleson® <rick_oleson@yahoo.com>for this Zuiko project. Rick also co-maintains the popular OM Message Board in PIM site. Image Copyright © 2003. All rights reserved.
I have no conclusive information relating to these and will assume there may have such improvement made. Anyway, with a moderately fast f/3.5 maximum aperture, this macro lense offers much the same outstanding performance as the f/2.0 introduced at a very late stage, but its strength is in a still smaller, highly portable format. Since the front lens element locates very inward, the use of lense hood is not entirely necessary unless there is a direct light source. This Zuiko Macro lense is extremely versatile, as used with wide range combinations of system accessories greatly extends the magnification range while retaining extremely acceptable standards of resolution and contrast. This simple to use, immensely popular Zuiko macro lense has a faster counterpart introduced between 1983/1985 in a Zuiko MC MACRO 50mm f/2.0.

Specifications:

Focal length: 50mm
Maximum Aperture: 1:3.5
Angle of view: 47°
Optical construction: 5 elements in 4 groups; Multicoated for later versions,unknown for earlier ones
Diaphragm operation: Automatic
Aperture range: f/3.5 - f/22

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Focusing: Straight Helicoid; provided for aberration correction at close working range (floating elements system)
Minimum focus: 0.23m (9-1/8") to infinity (
OO).
Minimum photographic range:
48mm x 72mm (1-7/8" x 2-3/4")
Filter attachment size/Filters: 49mm screw-in type

<<< -- Credit: Image courtesy of Mr Ed Roth® <edjroth@attbi.com>. Image Copyright © 2003. All rights reserved. Please respect the visual property of the contributing photographer.

50mmf35optic.gif
Maximum diameter: 60mm (2-3/8")
Reproduction Ratio: 1:2 (1/2 Life Size)
*
Length:
40mm (1-1/2")
Weight:
200g (7-1/8 oz)

* For higher magnification ratio than 1:2, you can use the lense with various combinations of Extension Tubes, Auto Bellow etc.
Recommended Focusing Screens: 1-1*, 1-2*, 1-3*, 1-4N*, 1-5#, 1-6#,1-10*, 1-13* and 1-14*. * Compatible. # usable but the meter built into the OM-1 and OM-2 ton MANUAL) does not give 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. Darkening at corners may occur at smaller apertures.

Depth of Filed table. (42k Gif)

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Zuiko MC MACRO 50mm f/2.0 (Current Version)

In a highly uncharacteristic fashion, Olympus introduced another macro lense at 50mm standard focal length in 1986. Probably the Company thought it was the right time to give the decade-old 50mm f/3.5 a revision. However, this lense is more than just a revision because while most other manufacturers are contented just with a usual f/2.8 maximum aperture, the speed boost to a incredible f/2.0 has also made this lense the fastest macro lense in 35mm SLR photography.

<<< --- Credit: This image was specially taken by Mr. Jone Quinn <yahuhai@yahoo.com> for this OM project. Jone Quinn runs a popular Ebay Store and he specializes in selling OM photo gears. Image copyright © 2003 All rights reserved.

This lens has an extreme flatness of field and permits close focus ability all the way from infinity to as close as 0.24m without any physical attachments while achieving a 0.5X (1:2 reproduction ratio) while higher magnification ratio can be achieved via the use in combination with other OM system accessories such as Auto bellows, Auto Extension Tubes set (which includes the 65-116 Auto Tube). Close range optical correction system with floating elements design ensures its superlative image quality be maintained at its closest working distance. With its large aperture ratio of f/2.0, the immediate benefit it offers is a different working experience as soon as you view through the finder. It is bright, clear and easy to focus. The built quality of this lense is first class, and with its excellent lense handling characteristic and versatility it offers, this lense may be able to expand your picture-taking scope to another horizon and insures superb picture sharpness. However, among all the good features it possesses, there is a little designing flaw as a macro lense, the minimum aperture is strangely being fixed at f/16- which makes it a little restrictive for more depth of field control. Whatever it is, the convenience it provides as a dual purpose normal standard lense and be able to extend its top quality performance down to half life size is good enough as a sole reason to let you consider it as a good alternative all round optic.

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Regardless of whether you are using a standard, long macro lens or using any form of extension to increase reproduction ratio, there are a few things to note when working in close-up photography: at close focusing distances depth of field is very shallow hence careful focusing and minimizing camera movement is important. Magnifying the image also means magnifying any errors in focusing or movement.

<<< -- Credit: Image courtesy of Mr Rick Oleson® <rick_oleson@yahoo.com> who also co-maintains the popular OM Message Board in PIM site. Image Copyright © 2003. All rights reserved.

The shorter the distance from the camera to the subject, the shallower the depth of field and may demand more light reaching the film and thus exposure compensation is required (The exposure reading will automatically compensate that during the continuous metering process - but you may sense the shutter speed indicator will drop significantly the closer it goes). Finding the exact point of sharpness is essential (Depth of field is always greater in front rather than behind at the plane of sharpness). For those OM SLR bodies that permits interchangeability of focusing screens, experiment if possible with a variety of screens to find the one that works best for you. Generally, lenses with smaller maximum aperture will transmit less light to the focusing mechanism which in turns may cause darkening of the split image rangefinder of the focusing screen. In such case, change to a plain type. Although NOT ALL OM SLRs have an interchangeable focusing screen feature, you may refer to the OM Focusing Screens section to find more compatibility issues relate.

One way to assure accurate focus is to stop down the lens as much as possible, taking advantage of the maximum depth of field. However, as magnification increases the effective working aperture of the lens decreases. At f/5.6 and 1X magnification, for example, less light reaches the film than at normal shooting distances; how much less is depended on magnification. Your SLR's through-the-lens metering system should automatically compensates for this effective aperture change. But you may have to use slow shutter speeds for good exposure. A tripod and cable release are invaluable aids in general close-up shooting because hand-holding the camera at slow shutter speeds could easily leads to undesirable camera movement.

Specifications:

Focal length: 50mm
Maximum Aperture: 1:2.0
Angle of view: 47°
Optical construction:
9 elements in 7 groups, multicoated
Diaphragm operation: Automatic
Aperture range: f/2.0 - f/16
Focusing: Straight Helicoid; provided for aberration correction at close working range (floating elements system)
Minimum focus:
0.24 m (0.8') to infinity (OO).
Minimum photographic range:
48 x 72 rnm (1.9" x 2.8")
Filter attachment size/Filters: 55mm screw-in type

50mmf2optic.jpg
Maximum diameter: 69 rnm (2.7")
Reproduction Ratio: 1:2 (1/2 Life Size)
*
Length:
55 mm (2.2")
Weight:
320 g (11.3 oz.)

* For higher magnification ratio than 1:2, you can use the lense with various combinations of Extension Tubes, Auto Bellow etc.

50mmmacrof3tableSML.gif
Recommended Focusing Screens: 1-1*, 1-2*, 1-3*, 1-4N*, 1-5#, 1-6#,1-10*, 1-13* and 1-14*. * Compatible. # usable but the meter built into the OM-1 and OM-2 ton MANUAL) does not give 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. Darkening at corners may occur at smaller apertures.

Depth of Filed table. (31k Gif)

| Previous | NEXT | 3/5 The new and older version of the Zuiko 1:1 80mm MACRO lense

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

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 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 |

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Maintainers for OM Zuiko Site & Message Board: Rick Oleson (Email: rick_oleson@yahoo.com Website: http://rick_oleson.tripod.com), Bruce Hamm (bhamm@magma.ca), John Orrell (john@orrellj.freeserve.co.uk), Simon Evans, (http://www.mawddwy.freeserve.co.uk); Shaun (shaun@noemail.com), Andy Radcliffe (AndyJRadcliffe@manx.net)

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 <md@dementia.org>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.