Sigma 90mm F/2.8 Macro ZEN

Macro lens • Film era • Discontinued

MACRO Macro lens. Designed specially for shooting close-ups of small subjects but can be also used in other genres of photography, not necessarily requiring focusing at close distances.

Model history / モデル履歴

Sigma 90mm F/2.8 Macro ZEN1:2A9 - 90.32mE52 1988 
Sigma MF 90mm F/2.8 Macro ZEN1:2A9 - 90.32mE52 1988 

Compatibility / 互換性

  • The autofocus will not be available with Nikon D40, D40X, D60, D3000-D3500, D5000-D5600 digital SLR cameras.
  • This lens may not work properly with Canon EOS cameras due to compatibility issues.

Features highlight / 機能のハイライト

F.E.
1:2
Focus limiter

Specification / 仕様

Production status and name / 生産状況と名称
Announced / 発表: September 1988
Production status / 生産状況: Discontinued
Original name / 元の名前: SIGMA AF MACRO 1:2.8 f=90mm MULTI-COATED
Optical design / 光学設計
Maximum format / 最大フォーマット: 35mm full frame
Mount / マウント: Canon EF
Minolta/Sony A
Nikon F
Sigma SA
Diagonal angle of view / 対角画角: 27° (35mm full frame)
21.6° (Canon EF APS-H)
17.8° (Minolta/Sony A APS-C)
17.8° (Nikon F APS-C)
15.7° (Sigma SA APS-C)
Lens construction / レンズ構造: 9 elements - 9 groups
Floating element system
Diaphragm mechanism / ダイヤフラムメカニズム
Diaphragm control system / ダイヤフラム制御システム: Mechanical (Nikon F)
Electromagnetic (Canon EF, Minolta/Sony A, Sigma SA)
Number of blades / 絞り羽根の数: 6
Focusing / フォーカシング
Closest focusing distance / 最短撮影距離: 0.32m
Maximum magnification ratio / 最大倍率: 1:2 at the closest focusing distance
Focusing method / フォーカシング方法: <No information>
Focusing modes / フォーカシングモード: Autofocus, manual focus
Manual focus control / マニュアルフォーカス制御: Focusing ring
Autofocus motor / オートフォーカスモーター: Micromotor (Canon EF, Sigma SA)
In-camera motor (Nikon F, Minolta/Sony A)
Focus mode selector / フォーカスモードセレクター: AF/M (Canon EF, Sigma SA)
None; focusing mode is set from the camera (Nikon F, Minolta/Sony A)
Manual focus override in autofocus mode / オートフォーカスモードでの手動フォーカスオーバーライド: -
Focusing distance range limiter / フォーカシングディスタンスレンジリミッター: FULL;0.5-
Image stabilizer / 手ぶれ補正
Optical Stabilizer (OS): -
Physical characteristics / 体格的特徴
Weight / 重量: 390g (Nikon F)
Maximum diameter x Length / 最大直径x長さ: ⌀74.5×62.5mm (Nikon F)
Weather sealing / ウェザーシーリング: -
Fluorine coating / フッ素コーティング: -
Accessories / 付属品
Filters / フィルタ: Screw-type 52mm
Lens hood / レンズフード: Bayonet-type (round)

From the editor / 編集者から

The overall length of the lens increases only by 17mm with focusing from infinity to the closest distance. The front element is deeply recessed inside the lens barrel which eliminates the need for a lens hood. Nevertheless, Sigma offered deep circular lens hood as a part of the package.

The lens offers magnification ratio of 1:2 at the closest focusing distance of 0.32m. A dedicated “Life-size attachment” lens was included in the package to offer magnification ratio of 1:1 at the reduced closest focusing distance of 0.22m. Focusing at infinity with this accessory is not possible though. The “Life-size attachment” was designed to fit a 52mm filter thread.

Typical application / 典型的なアプリケーション

portraits, travel, macrophotography and product photography

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Tokina AT-X Macro M100 AF 100mm F/2.8 (IF)

Cosina AF 100mm F/3.5 MC Macro (Phoenix, Promaster, Samyang, Soligor, Tokina EMZ, Vitacon, Vivitar, Voigtlander Macro-Dynar)

Tamron SP AF 90mm F/2.5 Macro 152E

No photo available

  • Advantages: 0
  • Disadvantages: 1

Tamron SP AF 90mm F/2.5 Macro 52E

Tamron SP AF 90mm F/2.5 Macro 52E
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Tokina AT-X Macro M100 AF 100mm F/2.8 (IF)

Cosina AF 100mm F/3.5 MC Macro (Phoenix, Promaster, Samyang, Soligor, Tokina EMZ, Vitacon, Vivitar, Voigtlander Macro-Dynar)

Cosina AF 100mm F/3.5 MC Macro Digital (Phoenix, Promaster, Samyang, Soligor, Tokina EMZ, Vitacon, Vivitar, Voigtlander Macro-Dynar)

Tokina AT-X Macro M100 AF 100mm F/2.8 (IF)

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35mm full frame

43.27 24 36
  • Dimensions: 36 × 24mm
  • Aspect ratio: 3:2
  • Diagonal: 43.27mm

Travellers' choice

Note

Among autofocus lenses designed for 35mm full-frame mirrorless cameras only. Speed of standard and telephoto lenses is taken into account.

Professional lens

One of the best short telephoto macro primes

According to lens-db.com; among lenses designed for the same maximum format and mount.

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Quality control issues

The manufacturer of this lens does not provide adequate quality control. If you do decide to purchase this lens, do not order it online, but choose the best copy available in the store. In any case, there may also be problems with the build quality, and warranty repairs can take months.

Model produced in a small batch. It is collectible and can only be found on the secondary market.

Image stabilizer

A technology used for reducing or even eliminating the effects of camera shake. Gyro sensors inside the lens detect camera shake and pass the data to a microcomputer. Then an image stabilization group of elements controlled by the microcomputer moves inside the lens and compensates camera shake in order to keep the image static on the imaging sensor or film.

The technology allows to increase the shutter speed by several stops and shoot handheld in such lighting conditions and at such focal lengths where without image stabilizer you have to use tripod, decrease the shutter speed and/or increase the ISO setting which can lead to blurry and noisy images.

Classic focal length

85 and 90mm are the classic focal lengths of short telephoto lenses for 35mm full-frame SLR and rangefinder cameras (respectively). As a rule, this class of lenses consists of high-speed models, however, there were also slow ones in the era of analog photography.

Short telephoto lenses are optimized for portrait photography, so that the background blur and impressive isolation of the subject from the background is achieved at medium focusing distances.

Many short telephoto lenses are compact and lightweight enough to be well suited for casual and travel photography. Some models are equipped with optical image stabilization.

Micromotor

In-camera motor

Micromotor

In-camera motor

Focusing distance range limiter

The lens features focusing distance range limiter which allows to choose between the following focusing distance ranges:

FULLFull range of focusing distances.
0.5m - ∞Range of focusing distances suitable for shooting distant subjects.

By setting the suitable focusing distance range, the actual autofocusing time can be shorter.

AF/M

AFAutofocus mode.
MManual focus mode.

Original name

Lens name as indicated on the lens barrel (usually on the front ring). With lenses from film era, may vary slightly from batch to batch.

Format

Format refers to the shape and size of film or image sensor.

35mm is the common name of the 36x24mm film format or image sensor format. It has an aspect ratio of 3:2, and a diagonal measurement of approximately 43mm. The name originates with the total width of the 135 film which was the primary medium of the format prior to the invention of the full frame digital SLR. Historically the 35mm format was sometimes called small format to distinguish it from the medium and large formats.

APS-C is an image sensor format approximately equivalent in size to the film negatives of 25.1x16.7mm with an aspect ratio of 3:2.

Medium format is a film format or image sensor format larger than 36x24mm (35mm) but smaller than 4x5in (large format).

Angle of view

Angle of view describes the angular extent of a given scene that is imaged by a camera. It is used interchangeably with the more general term field of view.

As the focal length changes, the angle of view also changes. The shorter the focal length (eg 18mm), the wider the angle of view. Conversely, the longer the focal length (eg 55mm), the smaller the angle of view.

A camera's angle of view depends not only on the lens, but also on the sensor. Imaging sensors are sometimes smaller than 35mm film frame, and this causes the lens to have a narrower angle of view than with 35mm film, by a certain factor for each sensor (called the crop factor).

This website does not use the angles of view provided by lens manufacturers, but calculates them automatically by the following formula: 114.6 * arctan (21.622 / CF * FL),

where:

CF – crop-factor of a sensor,
FL – focal length of a lens.

Mount

A lens mount is an interface — mechanical and often also electrical — between a camera body and a lens.

A lens mount may be a screw-threaded type, a bayonet-type, or a breech-lock type. Modern camera lens mounts are of the bayonet type, because the bayonet mechanism precisely aligns mechanical and electrical features between lens and body, unlike screw-threaded mounts.

Lens mounts of competing manufacturers (Canon, Nikon, Pentax, Sony etc.) are always incompatible. In addition to the mechanical and electrical interface variations, the flange focal distance from the lens mount to the film or sensor can also be different.

Lens construction

Lens construction – a specific arrangement of elements and groups that make up the optical design, including type and size of elements, type of used materials etc.

Element - an individual piece of glass which makes up one component of a photographic lens. Photographic lenses are nearly always built up of multiple such elements.

Group – a cemented together pieces of glass which form a single unit or an individual piece of glass. The advantage is that there is no glass-air surfaces between cemented together pieces of glass, which reduces reflections.

Floating element system

Provides correction of aberrations and ensures constantly high image quality at the entire range of focusing distances from infinity down to the closest focusing distance. It is particularly effective for the correction of field curvature that tends to occur with large-aperture, wide-angle lenses when shooting at close ranges.

Closest focusing distance

The minimum distance from the focal plane (film or sensor) to the subject where the lens is still able to focus.

Closest working distance

The distance from the front edge of the lens to the subject at the maximum magnification.

Magnification ratio

Determines how large the subject will appear in the final image. For example, a magnification ratio of 1:1 means that the image of the subject formed on the film or sensor will be the same size as the subject in real life. For this reason, a 1:1 ratio is often called "life-size".

Manual focus override in autofocus mode

Allows to perform final focusing manually after the camera has locked the focus automatically. Note that you don't have to switch camera and/or lens to manual focus mode.

Manual focus override in autofocus mode

Allows to perform final focusing manually after the camera has locked the focus automatically. Note that you don't have to switch camera and/or lens to manual focus mode.

Electronic manual focus override is performed in the following way: half-press the shutter button, wait until the camera has finished the autofocusing and then focus manually without releasing the shutter button using the focusing ring.

Electromagnetic diaphragm control system

Provides highly accurate diaphragm control and stable auto exposure performance during continuous shooting.

Convex protruding front element

The convex front element protrudes from the lens barrel, making it impossible to use filters.

Number of blades

As a general rule, the more blades that are used to create the aperture opening in the lens, the rounder the out-of-focus highlights will be.

Some lenses are designed with curved diaphragm blades, so the roundness of the aperture comes not from the number of blades, but from their shape. However, the fewer blades the diaphragm has, the more difficult it is to form a circle, regardless of rounded edges.

At maximum aperture, the opening will be circular regardless of the number of blades.

Weight

Excluding case or pouch, caps and other detachable accessories (lens hood, close-up adapter, tripod adapter etc.).

Maximum diameter x Length

Excluding case or pouch, caps and other detachable accessories (lens hood, close-up adapter, tripod adapter etc.).

For lenses with collapsible design, the length is indicated for the working (retracted) state.

Weather sealing

A rubber material which is inserted in between each externally exposed part (manual focus and zoom rings, buttons, switch panels etc.) to ensure it is properly sealed against dust and moisture.

Lenses that accept front mounted filters typically do not have gaskets behind the filter mount. It is recommended to use a filter for complete weather resistance when desired.

Fluorine coating

Helps keep lenses clean by reducing the possibility of dust and dirt adhering to the lens and by facilitating cleaning should the need arise. Applied to the outer surface of the front and/or rear lens elements over multi-coatings.

Filters

Lens filters are accessories that can protect lenses from dirt and damage, enhance colors, minimize glare and reflections, and add creative effects to images.

Lens hood

A lens hood or lens shade is a device used on the end of a lens to block the sun or other light source in order to prevent glare and lens flare. Flare occurs when stray light strikes the front element of a lens and then bounces around within the lens. This stray light often comes from very bright light sources, such as the sun, bright studio lights, or a bright white background.

The geometry of the lens hood can vary from a plain cylindrical or conical section to a more complex shape, sometimes called a petal, tulip, or flower hood. This allows the lens hood to block stray light with the higher portions of the lens hood, while allowing more light into the corners of the image through the lowered portions of the hood.

Lens hoods are more prominent in long focus lenses because they have a smaller viewing angle than that of wide-angle lenses. For wide angle lenses, the length of the hood cannot be as long as those for telephoto lenses, as a longer hood would enter the wider field of view of the lens.

Lens hoods are often designed to fit onto the matching lens facing either forward, for normal use, or backwards, so that the hood may be stored with the lens without occupying much additional space. In addition, lens hoods can offer some degree of physical protection for the lens due to the hood extending farther than the lens itself.