Tokina AT-X Pro 535 AF SD 50-135mm F/2.8 (IF) DX

Telephoto zoom lens • Digital era • Discontinued

AT-X Professional lens with high quality optics and robust build. Meets the highest standards and provides excellent performance and flawless image quality unachievable with traditional optical technologies.
PRO The lens is equipped with Focus Clutch Mechanism for switching the lens between autofocus and manual focus modes.
SD The lens incorporates low dispersion elements.
(IF) The lens incorporates internal focusing.
DX The lens is designed only for APS-C digital SLR cameras.
Tokina AT-X Pro 535 AF SD 50-135mm F/2.8 (IF) DX

Sample photos

135mm F/3.2

Compatibility ⋅ 互換性

  • The autofocus will not be available with Nikon D40, D40X, D60, D3000-D3500, D5000-D5600 digital SLR cameras.

Features highlight ⋅ 機能のハイライト

APS-C
Constant F/2.8
IF
Focus Clutch
WR
IZ

Specification ⋅ 仕様

Production status and name ⋅ 生産状況と名称
Announced ⋅ 発表: March ⋅ 行進 2006
Production status ⋅ 生産状況: Discontinued ⋅ 製造中止
Original name ⋅ 元の名前: Tokina AT-X PRO SD 50-135 F2.8 DX
Optical design ⋅ 光学設計
Maximum format ⋅ 最大フォーマット: APS-C
Mount ⋅ マウント: Canon EF
Nikon F
Diagonal angle of view ⋅ 対角画角: 37.9°-14.5° (Canon EF APS-H)
31.6°-12° (Nikon F APS-C)
Lens construction ⋅ レンズ構造: 18 elements ⋅ 要素 - 14 groups ⋅ グループ
3 SD
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 ⋅ 機械的 (Nikon F)
Electromagnetic ⋅ 電磁 (Canon EF)
Number of blades ⋅ 絞り羽根の数: 9
Zooming ⋅ ズーミング
Zooming method ⋅ ズーム方法: Rotary ⋅ ロータリー
Zoom type ⋅ ズームタイプ: Internal zooming ⋅ 内部ズーム
Focusing ⋅ フォーカシング
Closest focusing distance ⋅ 最短撮影距離: 1m
Maximum magnification ratio ⋅ 最大倍率: 1:5.89 @ 135mm at the closest focusing distance ⋅ 最寄りの距離で
Focusing method ⋅ フォーカシング方法: Internal focusing (IF) ⋅ 内部フォーカシング
Focusing modes ⋅ フォーカシングモード: Autofocus, manual focus ⋅ オートフォーカス、マニュアルフォーカス
Manual focus control ⋅ マニュアルフォーカス制御: Focusing ring ⋅ フォーカシングリング
Autofocus motor ⋅ オートフォーカスモーター: Micromotor (Canon EF)
In-camera motor (Nikon F)
Focus mode selector ⋅ フォーカスモードセレクター: Tokina One Touch Focus Clutch Mechanism
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: -
Image stabilizer ⋅ 手ぶれ補正
Vibration Correction Module (VCM): -
Physical characteristics ⋅ 体格的特徴
Weight ⋅ 重量: 845g (mount not specified ⋅ マウントが指定されていません)
Maximum diameter x Length ⋅ 最大直径x長さ: ⌀78×135mm (mount not specified ⋅ マウントが指定されていません)
Weather sealing ⋅ ウェザーシーリング: -
Water Repellent (WR) coating: Front element ⋅ フロントエレメント
Accessories ⋅ 付属品
Filters ⋅ フィルタ: Screw-type ⋅ ネジ式 67mm
Lens hood ⋅ レンズフード: Bayonet-type ⋅ バヨネットタイプ BH-671 (petal-shaped ⋅ 花びらの形)
  • Toggle description in Japanese

    メーカーの説明

    デジタル一眼レフ専用のDXレンズ

    APS-Cサイズの固体撮像素子専用に開発した大口径望遠ズームレンズ。

    従来にない焦点距離とサイズ

    35mm判換算で約70~200mm F2.8と同等の画角を持つ小型・高性能ズームレンズ。大口径望遠ズームレンズでありながら、全長135.2mm、最大径78.2mm、重さ845gと他に類を見ないコンパクトなボディを実現しました。

    高性能光学系

    レンズ構成14群18枚と非常に贅沢なレンズ設計とすることで、各収差を徹底的に除去。ゴースト、フレア対策も各レンズのマルチコートにより、万全です。また、高価なSDガラス3枚、LDガラス4枚を惜しみなく配置。大口径望遠系ズームレンズで発生しやすい色収差も理想的に抑え込み、シャープでコントラストの高い高品質な描写を実現しております。

    最短撮影距1mと全長変化のない機構設計

    インターナルフォーカス(IF)により、最短撮影距離1mを実現いたしました。また、ズーミング時にレンズ全長の変化がないため、撮影時のホールディング性は抜群です。

    WRコートの採用

    レンズ前面に新開発のWR(Water-Repellent)コートを施しております。撥水性、撥油性に優れているため、水滴の除去、指紋や油汚れ等も簡単に拭き取ることができます。

    ワンタッチフォーカスクラッチ機構の採用

    トキナーPROシリーズに採用している、ワンタッチフォーカスクラッチ機構を装備。AFからMFへの切り替えが瞬時で行え、快適なマニュアル操作感を実現しております。

Manufacturer description

The new Tokina AT-X 535 PRO DX lens is a 50-135 with a fast constant aperture of f/2.8. This lens gives digital photographers the similar to the industry standard 80-210 telephoto zoom lens in 35mm camera terms but is much more compact and lightweight.

The lens features SD glass lens elements to correct for chromatic aberrations and focuses all colors accurately at the film plane, making the AT-X 535 PRO DX an APO lens.

The front element has a newly formulated WP or "Water Proof" optical coating on the glass. This new coating makes marks such as spots left by water or finger-prints much easier to clean than standard multi-coating.

Other features include a built-in tripod collar and One-touch focus clutch mechanism for fast switching between auto focus and manual focus modes.

From the editor ⋅ 編集者から

The lens is a result of cooperation between Pentax and Tokina companies and known as the smc Pentax-DA* 50-135mm F/2.8 ED [IF] SDM in the Pentax K system.

Typical application ⋅ 典型的なアプリケーション

distant subjects ⋅ 遠方の被写体, distant landscapes with perspective compression effect ⋅ 遠近法による圧縮効果のある遠景, wild nature ⋅ 野生の自然

Recommendations ⋅ 推奨事項

  • If you are into travel photography, consider acquiring a similar lens, but with dust-proof and water-resistant barrel and a fluorine-coated front element.

Sigma 50-150mm F/2.8 APO EX DC HSM

Sigma 50-150mm F/2.8 APO EX DC HSM II

Sigma 50-150mm F/2.8 APO EX DC HSM

Sigma 50-150mm F/2.8 APO EX DC HSM II

Lenses with similar focal length range and speed

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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.

One of the best fast telephoto zooms

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.

Micromotor

In-camera motor

Tokina One Touch Focus Clutch Mechanism

Tokina’s exclusive One-touch Focus Clutch Mechanism allows the photographer to switch between AF and MF simply by snapping the focus ring forward for AF and back toward the camera to focus manually. The rotation of the focusing ring to the infinity or to the closest focusing distance before switching the ring from AF setting to MF is not required. There is no need to change the AF/MF switch on Nikon camera bodies and there is no second AF/MF switch on the lens for Canon, everything is accomplished by the focus ring.

Aspherical elements

Aspherical elements (ASPH, XA, XGM) are used in wide-angle lenses for correction of distortion and in large-aperture lenses for correction of spherical aberration, astigmatism and coma, thus ensuring excellent sharpness and contrast even at fully open aperture. The effect of the aspherical element is determined by its position within the optical formula: the more the aspherical element moves away from the aperture stop, the more it influences distortion; close to the aperture stop it can be particularly used to correct spherical aberration. Aspherical element can substitute one or several regular spherical elements to achieve similar or better optical results, which allows to develop more compact and lightweight lenses.

Use of aspherical elements has its downsides: it leads to non-uniform rendering of out-of-focus highlights. This effect usually appears as "onion-like" texture of concentric rings or "wooly-like" texture and is caused by very slight defects in the surface of aspherical element. It is difficult to predict such effect, but usually it occurs when the highlights are small enough and far enough out of focus.

Low dispersion elements

Low dispersion elements (ED, LD, SD, UD etc) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture. This type of glass exhibits low refractive index, low dispersion, and exceptional partial dispersion characteristics compared to standard optical glass. Two lenses made of low dispersion glass offer almost the same performance as one fluorite lens.

Low dispersion elements

Low dispersion elements (ED, LD, SD, UD etc) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture. This type of glass exhibits low refractive index, low dispersion, and exceptional partial dispersion characteristics compared to standard optical glass. Two lenses made of low dispersion glass offer almost the same performance as one fluorite lens.

Canon's Super UD, Nikon's Super ED, Pentax' Super ED, Sigma's FLD ("F" Low Dispersion), Sony' Super ED and Tamron's XLD glasses are the highest level low dispersion glasses available with extremely high light transmission. These optical glasses have a performance equal to fluorite glass.

High-refraction low-dispersion elements

High-refraction low-dispersion elements (HLD) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture.

High Index, High Dispersion elements

High Index, High Dispersion elements (HID) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture.

Anomalous partial dispersion elements

Anomalous partial dispersion elements (AD) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture.

Fluorite elements

Synthetic fluorite elements (FL) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture. Compared with optical glass, fluorite lenses have a considerably lower refraction index, low dispersion and extraordinary partial dispersion, and high transmission of infrared and ultraviolet light. They are also significantly lighter than optical glass.

According to Nikon, fluorite easily cracks and is sensitive to temperature changes that can adversely affect focusing by altering the lens' refractive index. To avoid this, Canon, as the manufacturer most widely using fluorite in its telephoto lenses, never uses fluorite in the front and rear lens elements, and the white coating is applied to the lens barrels to reflect light and prevent the lens from overheating.

Short-wavelength refractive elements

High and specialized-dispersion elements (SR) refract light with wavelengths shorter than that of blue to achieve highly precise chromatic aberration compensation. This technology also results in smaller and lighter lenses.

Blue Spectrum Refractive Optics

Organic Blue Spectrum Refractive Optics material (BR Optics) placed between convex and concave elements made from conventional optical glass provides more efficient correction of longitudinal chromatic aberrations in comparison with conventional technology.

Diffraction elements

Diffraction elements (DO, PF) cancel chromatic aberrations at various wavelengths. This technology results in smaller and lighter lenses in comparison with traditional designs with no compromise in image quality.

High refractive index elements

High refractive index elements (HR, HRI, XR etc) minimize field curvature and spherical aberration. High refractive index element can substitute one or several regular elements to achieve similar or better optical results, which allows to develop more compact and lightweight lenses.

Apodization element

Apodization element (APD) is in fact a radial gradient filter. It practically does not change the characteristics of light beam passing through its central part but absorbs the light at the periphery. It sort of softens the edges of the aperture making the transition from foreground to background zone very smooth and results in very attractive, natural looking and silky smooth bokeh.

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.

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.

Fixed focus

There is no helicoid in this lens and everything is in focus from the closest focusing distance to infinity.

Overall linear extension

The entire lens optical system moves straight backward and forward when focusing is carried out. This is the simplest type of focusing used mainly in wide-angle and standard prime lenses. It has the advantage of introducing relatively little change in aberrations with respect to change in focusing distance. With telephoto and super telephoto lenses this method becomes less beneficial in terms of operability because of the increased size and weight of the lens system.

Front group linear extension

The rear group remains fixed and only the front group moves straight backward and forward during focusing. This method is primarily used in zoom lenses and allows to design comparatively simple lens construction, but also places restrictions on zoom magnification and size reduction.

Front group rotational extension

The lens barrel section holding the front lens group rotates to move the front group backward and forward during focusing. This method of focusing is also used only in zoom lenses.

Internal focusing (IF)

Focusing is performed by moving one or more lens groups positioned between the front lens group and the diaphragm.

Methods of internal and rear focusing have the following advantages:

Rear focusing (RF)

Focusing is performed by moving one or more lens groups positioned behind the diaphragm.

Methods of internal and rear focusing have the following advantages:

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.

Rotary zoom

The change of focal length is achieved by turning the zoom ring and the manual focusing - by turning the separate focusing ring.

Push/pull zooming allows for faster change of focal length, however conventional method based on the rotation of the zoom ring provides more accurate and smooth zooming.

Push/pull zoom

The change of focal length and the manual focusing is achieved by one and the same ring. The change of focal length happens when the photographer moves the ring towards the mount or backwards and the rotation of the ring leads to change of focus.

Push/pull zooming allows for faster change of focal length, however conventional method based on the rotation of the zoom ring provides more accurate and smooth zooming.

Zoom lock

The lens features a zoom lock to keep the zoom ring fixed. This function is convenient for carrying a camera with the lens on a strap because it prevents the lens from extending.

Power Zoom

The lens features electronically driven zoom mechanism. It provides smoother, more natural zoom movements than you could accomplish by hand.

The Holy Trinity of lenses

The Holy Trinity of lenses refers to a three-lens set that covers a focal length range from the ultra-wide focal length of 14-16mm all the way long to the telephoto focal length of 200mm. The set typically consists of a 16-35mm ultra-wide angle zoom lens, a 24-70mm standard zoom lens and a 70-200mm telephoto zoom lens and usually represents the best constant-aperture zoom lenses in a manufacturer's lineup. The set is designed to cover almost every genre of photography, be it landscapes, architecture, portraits, weddings, sports, travel or even wildlife (with teleconverter). However, it is also expensive, large and heavy.