The Tokina atx-i 11-20mm F2.8 CF (CF stands for Cropped Frame) was developed as an ultra-wide-angle zoom lens for DSLR cameras with an APS-C sensor. It is the only fast ultra wide-angle zoom lens with continuous aperture f/2.8 for APS-C DSLR cameras on the current market*.
The focal length of 11-20 mm, which corresponds to the angle of view of fixed focal lengths of 18 mm, 21 mm, 24 mm and 28 mm, makes this lens an attractive choice as a supplement to a standard zoom lens or to an existing wide-angle zoom kit lens.
A constant maximum aperture of f/2.8 across the entire zoom range is realized to enable excellent low-light results, targeted control of depth of field and comfortable manual working - all while maintaining a reasonable size and weight.
* As of April 2020
Optical performance
To achieve the exceptional optical performance required for an ultra wide-angle zoom lens, 3 aspherical glass elements and 3 super low dispersion glass elements have been used to minimize distortion, control spherical aberrations and astigmatism while achieving excellent edge-to-edge sharpness and high contrast across the entire field of view.
The anti-reflective multi-layer coating improves light transmission and minimizes reflections, while the newly applied water-repellent coating makes it easier to wipe and clean the surface of the front glass element.
Build quality + exterior design
True to its traditions, Tokina has integrated many metal parts inside the Lens to ensure a robust build quality and many years of use under different shooting conditions.
The sophisticated exterior design has been specially developed to match the design of modern DSLR cameras.
Mechanics + electronics
The Tokina atx-i 11-20mm F2.8 CF for Nikon F bayonet features an internal Silent Drive focusing motor (SD-M) combined with a precise GMR sensor that enables accurate and fast autofocus performance.
The one-touch focus clutch mechanism allows easy switching between autofocus and manual focus.
The overall length of the Tokina atx-i 11-20mm F2.8 CF does not change when focusing and zooming, thanks to the internal focus design. The zoom mechanism integrated in the barrel enables the use of screwed-on C-PL filters.
Features
Ultra-wide-angle focal length of 11-20 mm
Ideal for landscape photography, interiors, night scenes, group shots and weddings.
Constant maximum aperture of f/2.8
Excellent low-light performance, exceptional depth-of-field control and easy manual operation. A valuable feature for photo and video users.
Excellent optical performance
Sharpness right into the corners, reduced flares and ghosting, excellent contrast. Improved optical resolution.
Improved AF accuracy through firmware update
Internal focus
No problems with lens balancing and the use of graduated or polarizing filters.
Water-repellent coating
Easy to wipe and keep the front element clean.
One-touch focus clutch mechanism
Easy switching between AF and MF without interrupting the shooting process.
Very balanced price-performance ratio
Reasonable price compared to the high level of performance.
For photography
The ultra-wide-angle focal length of 11-20 mm in combination with the constant maximum aperture of f/2.8 makes this Lens an indispensable tool for the following photography genres: landscape, group photos and environmental portraits, architecture (especially interiors), automotive photography, weddings, street photography and night photography.
For video production
The Tokina atx-i 11-20mm F2.8 CF is particularly recommended for videographers and filmmakers who shoot both photos and videos professionally and offers the following advantages for these users:
Wide cinematic angle of view that offers security even in small spaces.
Minimized focus breathing - the image section hardly changes when adjusting the focus from near to far.
Natural film material - the image is not distorted when panning due to the very low distortion.
Constant aperture for using the entire zoom range during filming.
Excellent optical performance.
Note:
The Tokina atx-i 11-20mm F2.8 CF is designed for compatibility with DSLR cameras (APS-C size). When used on cinema cameras such as Blackmagic, it is recommended to use the Lens in manual focus mode.
The Tokina atx-i 11-20mm F2.8 CF is perfect for use with a gimbal.
Ideal wide-angle solution according to cinematic standards.
Low weight.
Zoom capability that allows the user to use different angles of view with the same Lens.
As the total length does not change thanks to the internal focusing, there is no need to recalibrate the gimbal each time the angle of view is changed.
Excellent color reproduction and high resolution performance.
Affordable price and high quality compared to very expensive cinema lenses.
Technical data:
Focal length: 11-20 mm
Maximum aperture: f/2.8
Minimum aperture: f/22
Auto iris: Yes
Angle of view: 104°-72°
Minimum focusing distance: 0.28 m
Macro ratio: 1 : 8.62
Focusing mode: Automatic
Manual focus ring: Yes
Autofocus switch: Clutch ring
Focusing mode: Internal focusing
Filter size: 82 mm
Coating: Multi-coating
Construction: E/G 14 elements in 12 groups
Aperture blades: 9
Lens hood: BH-821
Electrical contacts: Yes
Dimensions:
89 x 92 mm (Nikon F)
89 x 94 mm (Canon EF)
Weight:
550 g (Nikon F)
570 g (Canon EF)
Scope of delivery:
box, cleaning cloth, front lens cap, instruction manual, lens hood, rear lens cap, warranty card
Warranty 2 years limited warranty
