The Tokina atx-i 11-20mm F2.8 NAF 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 in 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.
HIGHLIGHTED FEATURES
Ultra-wide 11-20mm focal length
Ideal for shooting landscapes, interiors, nightscapes, 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.
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
SPECIFICATIONS
| Focal Distance | 11-20mm |
| Minimum Aperture | f/22 |
| Maximum Aperture | f/2.8 |
| Format | APS-C |
| Coating | Multi-coated |
| Lens Configuration | 12 groups, 14 elements |
| Angle of View | 104° ~ 72° |
| Minimum Focus Distance | 0.28m |
| Macro Ratio | 1 : 8.62 |
| Focus Method | Internal Focus |
| Diaphragm blades | 9 |
| Filter size | 82mm |
| Overall length | Nikon F mount: 91.8mm Canon EF mount: 94.3mm |
| Maximum diameter | 89mm |
| Weight | Nikon F mount: 550g Canon EF mount: 570g |
| Hood | BH-821 |
