Product Highlights
  • f/2.8 - f/22 Aperture Range
  • APS-C Format
  • 14/12 Elements/Groups
  • 9 Aperture Blades
  • 82mm Filter Diameter
  • Canon EF Mount
Lens Mount:
Canon EF
Nikon F
Tokina ATX-I 11-20mm f/2.8 CF Lens for EF Mount Tokina ATX-I 11-20mm f/2.8 CF Lens fo...
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atx-i 11-20mm F2.8 CF | Wide Zoom

Drawing the Horizon

The Tokina atx-i 11-20mm F2.8 CF (CF means cropped frame) is designed as an ultra wide angle zoom lens for APS-C sensor DLSR cameras. It is the only f/2.8 fast ultra wide angle zoom lens for APS-C sized DSLR cameras on the current market*.

Focal length 11-20mm that covers equivalent angle of wide prime 18mm, 21mm, 24mm, 28mm lenses makes this lens attractive to be chosen after standard zoom lens or initially possessed wide angle zoom kit lens.

A constant maximum aperture of f/2.8 throughout the entire zoom range is realized to achieve great results in low light conditions, for depth of field control and easy manual shooting, while maintaining a reasonable size and weight.

Key Features:

  • Ultra-wide 11-20mm focal length

    Ideal for shooting landscapes, interiors, nightscape, group shots, weddings

  • Constant maximum aperture of f/2.8

    Great performance in low light conditions, exceptional depth of field control and easy manual management. Valuable feature for still and video shooters

  • Excellent optical performance

    Edge-to-edge sharpness, reduced flares and ghosting, excellent contrast. Improved optical resolution

  • Improved AF accuracy

    By updating the firmware

  • Internal Focus

    No problems with lens balancing and using graduated or polarizing filters

  • Water-repellent coating

    Easy to wipe and maintain the front element clean

  • One-touch Focus Clutch mechanism

    Easy AF/MF switching without interruption of the shooting process

  • Greatly balanced cost performance

    Reasonable pricing compared to high level of performance

Optical Performance

To achieve an exceptional optical performance required for ultra wide angle zoom lens 3 aspherical glass elements and 3 Super-Low Dispersion glass elements were used in order to minimize distortion, manage spherical aberration and astigmatism while achieving excellent edge-to edge resolution and high contrast through the entire image.

Anti-reflective multi-layer coating improves light transmission and minimizes reflections while newly applied water-repellent coating makes wiping and cleaning the surface of the front glass element easier.

Anti-reflective multi-layer coating improves light transmission and minimizes reflections while water-repellent coating makes wiping and cleaning the surface of the front glass element easier.

Build Quality & Exterior Design

Devoted to its traditions, Tokina incorporated a lot of metal parts inside the lens for a reassuring built quality and long time utilization in different shooting conditions.

The sophisticated exterior design is specifically developed to match the design of contemporary DSLR cameras.

Mechanics & Electronics

The Tokina atx-i 11-20mm F2.8 CF for Nikon F mount incorporates internal Silent-Drive focusing Motor (SD-M) in combination with precise GMR sensor to allow the lens to AF accurately and fast.

One-touch focus Clutch mechanism allows to switch between autofocus and manual focus easy.

The overall length of the Tokina atx-i 11-20mm F2.8 CF does not change when focusing and zooming thanks to internal type of the focus. Zooming mechanism inside the barrel allows using C-PL filters attached.

For Still Photography

Ultra-wide 11-20mm focal length, constant maximum aperture of f/2.8 makes this lens an essential tool for the following genres of photography: landscape, group photos and environmental portraits, architecture (especially interiors) automobile photography, weddings, street snap and night sky photography.

For Video Content Production

The Tokina atx-i 11-20mm F2.8 CF is suggested for videographers and film makers in mind who shoot both stills and video professionally, featuring the following advantages for such a kind of users.

  • Wide cinematic angle enough to feel confident in small places.
  • Minimized focus breathing – the subject framing does not show big change when focus is adjusted from near to far.
  • Natural footage - the image is not distorted when panning due to very low distortion performance.
  • Constant aperture to use full zoom range while you are filming.
  • Excellent optical performance.

A perfect match to use with gimbal:

  • Ideal wide angle fitting cinematic standards
  • Light weight
  • Zooming abilities that allow user to shoot in different angles using the same lens
  • Since the overall length does not change thanks to internal type of focusing, there is no need to do gimbal calibration every time the angle of view was changed
  • Great colour rendering and resolution abilities
  • Affordable price and high quality compared to really expensive cinema lenses

atx-i Series

Leaving the honorable AT-X abbreviation, the letter "i" was newly added. The "i" stands for "interactive", implying mutual communication between photographer and the lens. Tokina's belief is that this series will equip photographers with the ability to substantially engage with and capture the atmosphere around them.

What's Included

atx-i 11-20mm f/2.8 CF Lens
Front Lens Cap
Rear Lens Cap
Bayonet Lens Hood


Product Specifications

atx-i 11-20mm F2.8 CF

Type Wide Zoom
Sensor Size APS-C
Mount Canon EF, Nikon F
Focal Length 11-20mm
Maximum Aperture f/2.8
Minimum Aperture f/22
Automatic Aperture Yes
Angle of View 104°-72°
Minimum Focusing Distance 0.28m
Macro Ratio 1:8.62
Focusing Mode  Automatic
Manual Focusing Ring Yes
Autofocus Switch Clutch Ring
Focusing Type Internal Focus
Filter Size 82mm
Coating Multi-coating
Lens Construction 14 Elements in 12 Groups
Aperture Blades 9
Lens Hood BH-821
Electrical Contacts Yes

Physical Specs

Dimensions Nikon F: 89 x 92 mm (3.5 x 3.6")
Canon EF: 89 x 94 mm (3.5 x 3.7")
Weight Nikon F: 550 g (19.4 oz.)
Canon EF: 570 g (20.1 oz.)

Questions & Answers

Tokina ATX-I 11-20mm f/2.8 CF Lens for EF Mount

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