Information Library for Olympus Zuiko Lenses
Zuiko Telephoto Lenses -
Zuiko 1:1 80mm f/4.0 Macro, 90mm Macro & 85mm f/2.0 Lens

Short telephoto lenses

Other than standard lenses, perspective of short telephoto lenses with focal length between 60-90mm is closest to that of the human eye. These lenses cause less distortions when shooting close-ups of people's faces and also provide a more comfortable working distance between the camera and the subject. Telephoto lenses are also more appealing inside a viewfinder because they tends to compress perspective a little and draw subjects nearer than standard lenses.

Olympus has three lenses of different function and objective to serve photographers who seeks lenses at these specific focal length to fulfill their photographic requirements. The short telephoto is a Zuiko 85mm f/2.0 which you can use it for all round day to day photographic sessions. The next is a specialized lens with a 80mm focal length with a slower f/4.0 maximum aperture but it is dedicated for macrophotography. It is specially designed for reproduction in the life size range (Used together with Telescopic Auto Tube or OM Auto Bellow unit). A late inclusion was a surprise high speed Zuiko Macro 90mm f/2.0 which can use as well as a normal short telephoto lens.

The 85 & 90mm focal length bridged a gap between standard and telephoto lenses. Its moderate 29 (27 for the 90mm lens) angle of view isn't substantially narrower but is good for covering wide variety of photographic situations. The effect of compressed perspective typical of telephoto lenses is at its minimum with these lenses. Distortion of the image isn't a factor even when you use an extreme camera angle with these focal lengths, making it a good choice for shooting portraits at a reasonably distance such as half length portrait. The relatively large aperture of f/2.0 of both the normal 85mm lens and the Macro 90mm lens provide two advantages, firstly, the viewfinder image remains bright which is much comfortable and even good for pinpoint critical focusing; next, combining slight increase in focal length with its fast lens speed permits more depth of field control.

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Zuiko 85mm F2.0

The first focal length to give distinct telephoto effects, this 85mm lens is extra fast, yet as small as many standard lenses. Excellent for natural, distortion-free portraiture, indoor and nighttime photography, stage shots, etc.

Generally, those who works in a studio, stage, news, travel or even photojournalism etc. will find it handy to use this lens for a broad scope of applications. Although, it is better off to use this lens than a standard lens for portraiture, but there is still some slight distortion at its closest distance and thus, other than using it with intentionally, always keep a safe distance to prevent facial distortion.

The 85mm, in particular has long been given a lot of emphasis as an ideal focal length for portraiture. Thus stress was placed on enhancing this lens' full aperture and close focus capabilities. This lens maintains its high optical quality even at its closest focusing distance of 0.85 meter because it used to be the only telephoto lens within the Zuiko lens family that incorporated with a close-range optical correction mechanism to counter aberrations. The older version has a different optical construction of 6 elements in 4 groups while the revised lens is employing with 5 elements in 4 group design. Both lenses are incorporated with automatic correction mechanism against close distance aberrations. The new Zuiko lens, despite has an lens element short of the predecessor, maintains its weight equivalent to the older lens.

Specification:

Focal length: 85mm
Aperture ratio: 1:2
Lens construction: 4 groups, 5 elements
Angle of view: Diagonal: 29
Distance Scale: (m) 0.85 (2.8ft) to infinity (oo)
Focusing: Helicoid
Minimum aperture: f/16
Diaphragm: Automatic
Filter Size. 49mm
Length x max. diameter: 48mm
Weight: 260g (9.2oz)

85mmf2.jpg

Type: F-Zuiko AUTO-T 85mm f/2.0
Focal length:
85mm
Aperture ratio: 1:2.0
Lens construction: 4 groups, 6 elements
Angle of view: Diagonal:
29
Distance Scale: (m) 0.85 (2.8ft) to infinity (oo)
Focusing: Helicoid
Minimum aperture: f/16
Diaphragm: Automatic
Filter Size.
49mm
Length x max. diameter:
46mm
Weight:
260g (9.2oz)

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The Zuiko 90mm Macro shares virtually possesses all the advantages of a 85mm f2.0 but offer MORE. As the name suggests correctly, it is a specialized lens that has a extremely well corrected flatness of field which makes it an excellent for working at close distance. Further, it incorporates a close range optical correction system which minimizes coma and other common optical aberrations to ensure its high optical quality extends to the extreme close focus range. The f/2.0 maximum aperture provides a level of viewing comfort hard to match by any other macro lenses, in fact, this lens is one of the brightest in its class among any other comparing 35mm photographic system.

The most significant advantage of this lens is the "reach" while setting for macro photography. The 90mm Macro allows you to increase the shooting (film-to-subject) distance while maintaining the same magnification. For instance, using the 50mm Macro, the magnification at the minimum shooting distance of 23 cm is 0.5X. The same magnification can be achieved at a shooting distance of 45cm with the 90mm Macro. The lens weighs a hefty 550g (19.4oz) and is 71mm long and has a filter size of 55mm. The extra weight is contributed by a new 9 elements in 9 group optical composition, but balances well with a OM SLR with a motor drive or power winder attached. Its closest focusing distance is at 0.4m (1.3ft) and stopped down to f/22 which compensates well for the increased depth of Field for the extended focal length of 90mm. This lens retails at almost double of that of an equivalent 85mm f/2.0 (non-macro).

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Zuiko Macro 90mm F2.0

Another fastest macro lens in its class. Ideal for a great variety of subjects with its extra working distance for composition, lighting arrangement while maintaining a safe distance such as shooting hazardous subjects or being obstructed physically.

Since the focusing range extends to infinity, it also allows the use of regular photographic applications. Besides, the 100mm Macro has a more natural perspective characteristics than that of the 50mm equivalent. The fast lens speed provides a bright and comfortable viewing inside the viewfinder. Naturally, some of its advantages are also its short fall, it weighs more than twice that of the 50mm, and its depth of field is much shallower. Naturally these are not as critical and as long as you are aware of their characteristic and at times, can even make use of them creatively.

Type: Zuiko 1:1 Macro 90mm f/2.0; Angle of view: 27; Optical Construction: 9 elements in 9 groups; f-stop range: f2.0-f32; closest focusing distance: 0.4m (1.3ft); weight: 550g (19.4oz); length: 71mm; filter size: 49mm; recommended focusing screens: 1:1, 1:2, 1:3, 1.4, 1:4N, 1:10, 1:13, 1:14

The third lens within this short telephoto range is a macro lens that works only with either an extension such as Auto tube, PM-MTob or with an Auto Bellow. Some other lenses that require similar operation are the 20mm f/2.0, 20mm f/3.5, 38mm f/3.5, 38mm f/2.8, the 80mm f/4.0 featured here, plus the 135mm f/4.5. Some even called these as lens heads instead of lenses because they don't have a helicoid for focusing and have to make of either the bellow or the focusing mechanism of the Autotubes and that is the biggest difference between the 80mm f4.0 and the 90mm f2.0 featured earlier.

macro80mm.jpg
Zuiko 1:1 Macro 80mm F4/ Close-up Lens 80mm Macro f= 170mm

The world's very first 35mm SLR lens designed specifically for life-size reproductions. It functions at its best at a 1:1 ratio, but gives outstanding images from 1/2 to 2X life-size, the range of magnifications available when used with the Auto Bellows.

With the Telescopic Auto Tube it goes up to life-size, and the close-up lens is used to extend the range to 2x magnifications. Great for slide copying, philately, etc.

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The back portion of the lens is protruding longer and thus it requires either a mirror lock-up or an empty space to host. Type: Zuiko 1:1 Macro 80mm f/4.0; Angle of view: 9 at highest magnification; Optical Construction: 6 elements in 4 groups; f-stop range: f4.0-f32; closest focusing distance: With AUTO tube or bellow unit; weight: 170g (6.0oz); length: 31mm; filter size: 49mm; recommended focusing screens: 1:1, 1:2, 1:3, 1.4, 1:4N, 1:10, 1:11, 1:13, 1:14 * More info on "Picture Angle".


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