Additional information on Olympus Zuiko Lenses
Zuiko Standard 50/55mm lenses / Part II

 
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Zuiko AUTO-S 50mm f/1.2 (current version)

In 1982, Olympus redesigned their ZUIKO f/1.2 standard lense. An amazing feat is, the lense update enabled the fast lense shares a similar compact dimension with other ZUIKO lenses. Similarly, its weight also has reduced quite significantly to merely 285g. Besides, the lense also came with an OM-standard 49mm filter thread and enables it to accept a wide arrays of 49mm system accessories.

Although the updated optic was seemingly using a similar number of elements and lense groups but Olympus optical engineers managed to take advantage of this update to ensure optically, it improves greatly from the predecessor. Contrast and various aberrations that would affect image quality common to lenses with such large aperture have been extremely well corrected. Although disappointedly, the lense was not equipped with a floating lens elements design, but this lense is still able to deliver crisp and sharp images across its entire focusing range, which includes when working at its close focusing distances. In a good OM tradition, this superbly crafted 50mm lense exhibits a very high built quality which justifies to have its top optical quality well supplemented.

<<< -- Credit: Image of this lovely ZUIKO standard lenses was scanned from a 1986 Olympus Sales Manual.

Similar to the previous G-ZUIKO AUTO-S 55mm f/1.2, this lense was specifically being designed to handle low available light photography. Critical selection of optical glass type of high refractive index and low dispersion optical properties was used throughout. With additional multi-layers coatings applied on each lense elements to improve the spectral transmission factor, faithful colour rendition and reduced presence of ghost images which commonly arise in demanding undesirable available light photography. This beautifully made ZUIKO lense is highly corrected to ensure common aberrations be kept at absolute minimal level. Despite the fast lense speed, good contrast and high resolving power shows no edge fall in the picture, makes it an ideal lense for shooting interiors, and general low light situations. This lense is still a current model.

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<<<--- Credit: Image at far left courtesy of "Jone Quinn" <yahuhai@yahoo.com> who also runs a popular Ebay Store where you can take a visit to scout for OM used items. Image copyright © 2002 All rights reserved.

<<<--- Image of 55mm f/1.2 on OM2 Copyright-free images collection. leofoo ®2001.

Specification:

Type: Zuiko AUTO-S 50mm f/1.2
Focal length:
50mm
Aperture ratio:
1:1.2
Lens construction:
6 groups, 7 elements
Angle of view:
Diagonal: 43°
Distance Scale:
(m) 0.45 to infinity (oo
)
Focusing: Straight Helicoid
Minimum and Maximum aperture:
f/16 ~ f/1.

55mmf12optic.gif 50mmf12opticnew.gif
A comparison in optical construction used between two of the fast speed ZUIKO f/1.2 standard lenses. Both lenses share a similar optical design in 7 elements in 6 groups design. The G-ZUIKO AUTO-S 55mm f/1.2 has a marginally larger diameter than the Zuiko Auto-S 50mm f/1.2 which has a smaller filter attachment size of 49mm rather 55mm used at the older version. The 50mm lense also weighs considerably lighter at 285g as compared to 310g of the 55mm version.

Minimum photographic range: 28mm x 16mm
Diaphragm:
Automatic
Filter attachment size:
49mm
Length x max. diameter:
43mm x 65mm
Weight: 310g (10.9oz)
Lens hood:
Slide on (optional)
50mmf12OMc.jpg
Recommended Focusing Screens: 1:1*, 1:2*, 1:3*, 1:4*, 1:5#, 1:10*, 1:13*, 1:14*
*Compatible. Focusing and exposure accuracy remains but at smaller aperture with the use of high shutter speed, microprism, corners of the screen and split image may darken. # Compatible, they provide accurate focusing but exposure error may occur in manual mode for OM-1 and OM-2 series models. On AUTO, exposure accuracy remains, but the meter needle may not indicate correct shutter speeds. ## More info on "Picture Angle" or make use of the Glossary section in PIM site..

<<<--- Credit: Image of ZUIKO 50mm f/1.2 lense courtesy of "Jone Quinn" <yahuhai@yahoo.com> who also runs a popular Ebay Store where you can take a visit to scout for OM used items. Image copyright © 2002 All rights reserved.


G-ZUIKO AUTO-S 50mm f/1.4 / ZUIKO AUTO-S 50mm f/1.4

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One of the original ZUIKO lense introduced along with the OM system and easily one of the best selling ZUIKO around all these years. Designed to minimize the total length of lense, the sophisticated seven elements in six groups design of this standard lens produces high resolution and high contrast throughout the picture area and it even provides more than acceptable optical quality at full aperture. The Zuiko 50mm f/1.4, along with the Zuiko 50mm f/1.8 are often use for optical measurement and there the "standard" which determines color balance for the rest of other lenses in Zuiko family. Thus, these lenses provide excellent stable and faithful image reproduction where you can take full advantage from in your photography.
<<<--- Copyright-free images collection. leofoo ®2001.

With a unique optical design, which uses a front and rear lens groups with a symmetrical optical design which provides a distinctive advantage in permitting the use of large aperture while still maintain excellent color reproduction. The Zuiko 50mm f/1.4 combines various good factors in great portability, high performance and reasonably price all in a single package.

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But I do understand other than to serve those who knows how to put a standard lense into good use in their photography, even if it possesses many good features, this lense will less likely appeal to any new comer into SLR photography. But for those who are seasoned enough and know its true value and if you think you buy the idea of a high speed "short telephoto lense", take your time to scout around the many used retail outlets for one good used lense as many may not be thinking like you do with such a lense type, hehe ....

<<<--- Older version of the Zuiko 50mm f/1.4 lense has a silver-chrome front filter rim, as shown on this segmented scan from an old 1976 Olympus catalogue.

Olympus1450front.jpg
As shown by the picture I took above, lense coating on a newer version somehow exhibits a different reflectance with older G-ZUIKO AUTO-S 50mm f/1.4 which is less "colourful". Note: As some of the older 50mm within the series may have different configuration in their lense coating used, and they are no sure ways to ensure which is a later model, lense coating is often used as one of the way to determine their date of introduction as some ZUIKO lenses may have been treated with multilayers coatng but have not been indicated on th elense data. The indicative "MC" in the lens data for this lense was widely believed by OMers that they were introduced in 1984. (Come to think of it, can someone compile a serial number based database for such purpose just like what a friend of mine, Roland Wink is doing for the Nikkor lenses ?).

<<< -- Credit: Images courtesy of Mr. Mark <MARK NOKINASU@aol.com>. Image copyright © 2003. All rights reserved.

Well regardless which version you own, virtually ALL of the ZUIKO 50mm f/1.4 standard lense shares most basic lense specification (Both weighs 230g (8.1oz), close focuses down at 0.45m, aperture scales from f/1.4-f/16 and even has a similar optical construction of 7 elements in 6 groups. Except the older series are shorter, where it measures at 36mm as compared with a length of 40mm of the revised version which may have been occurred in 1984).

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The maximum lense speed of f/1.4, which ranks second fastest in the ZUIKO lense group, makes it in particular suitable for low available light shooting. Actually, it is a highly versatile lense and offers great flexibility for depth of field control and/or selection of good operating shutter speeds range. Another advantage the lense offers is, the maximum aperture of f/1.4 in open aperture metering provides a bright viewfinder and enables photographer with ease in picture viewing, focusing.

<<<<<<,,,,. A dress for Esther (43k Jpeg). Confession from a guilt-minded oldman. leofoo ®

Specification:

Focal length: 50mm
Current Version:
Zuiko 50mm f/1.4
Older version:
G-ZUIKO AUTO-S
50mm f/1.4
Aperture ratio
: 1:1.4
Lens construction: 6 groups, 7 elements
Angle of view: Diagonal: 46°
Distance Scale: (m) 0.45 to infinity (
oo)

Olympus1450front2.jpg Olympus1450front3.jpg
Minimum photographic range: 14cm x 21cm (5.5" x 8.3")
Focusing: Straight Helicoid

<<< -- Credit: Images courtesy of "cameras plus" <camerasplus@earthlink.net>
and Mr. Attila Lorincz <
alorincz@attbi.com>. Images copyright © 2003. All rights reserved.

Minimum & Maximum aperture range: f/1.4 ~ f/16
Diaphragm: Automatic
Filter attachment size/Filters: 49mm screw-in
Lens hood: Optional, 51mm slide-on type
Length:36mm (1.4"); 40mm for older version

50mmf14optic.jpg

Maximum diameter: 60mm
Weight: 230g
(8.1oz)
Recommended Focusing Screens: 1:1*, 1:2*, 1:3*, 1:4*, 1:5#, 1:10*, 1:13*, 1:14*
*Compatible. Focusing and exposure accuracy remains but at smaller aperture with the use of high shutter speed, microprism, corners of the screen and split image may darken. # Compatible, they provide accurate focusing but exposure error may occur in manual mode for OM-1 and OM-2 series models. On AUTO, exposure accuracy remains, but the meter needle may not indicate correct shutter speeds. ## More info on "Picture Angle" or make use of the Glossary section in PIM site..

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The Hindu festival Holi.

Picture taken in New Delhi. During Holi people are marking the end of winter by throwing coloured water and powder at another (including me, while taking this picture...) Date: 8-3-1993, morning.


Equipment: Kodachrome 64, Olympus OM40, Zuiko 50 mm F1.4.

<<< -- Credit: Image courtesy of Mr Erwin Voogt®<photovoogt@hotmail.com>. Greg has a website on his own. Image Copyright © 2003. All rights reserved. Please respect the visual property of the contributing photographer.
| Previous | Next | 2/3 The next few section covers the popular ZUIKO 50mm f/1.8 lense with a brief description on a special Zuiko 50mm f/2.0 PF lense.

| Index page for 50mm lenses |
| G-Zuiko AUTO-S 55mm f/1.2 | Zuiko AUTO-S 50mm f/1.2 | G-Zuiko AUTO-S 50mm f/1.4 & Zuiko 50mm f/1.4 | G-Zuiko AUTO-S 50mm f/1.8 & Zuiko 50mm f/1.8 | Zuiko 50mm f/2.0 PF | Zuiko AUTO MACRO 50mm f/3.5 | Zuiko AUTO MACRO 50mm f/2.0 |


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

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 |

| Back | Index Page of OM Zuiko lenses
| Back | to Main Index Page of OM1(n) & OM2(n) Series SLRs

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About this photographic site.

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Copyright © 2000. leofoo ®. MIR Web Development Team.

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.