Designed for Full-Frame cameras, the Tokina AT-X 17-35mm F4 give photographers a new wide-angle option. With a focal length of 17mm at the wide side the lens yields a spectacular 103.9 degree field of view which is great for shooting in tight situations or for taking in wide expanses of space.
This compact wide-angle zoom has a bright constant F/4 aperture make viewing and auto focus possible in lower light situations but still maintaining a reasonable size and weight.
Two Super-Low Dispersion glass elements and one aspheric glass allow the proprietary optical design to achieve excellent contrast and sharpness as well as controlling chromatic aberration.
Tokinas 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 lens mount for manual focusing.
Additionally the mechanics have been designed for better seals around moving parts making the lens more water-resistant* than lenses of the past. The lens is also designed to stand up to the rigors of daily use by photographers in a wide variety of shooting conditions and environments.
Specifications
Focal Length 17 - 35mm
Maximum Aperture F4
Minimum Aperture F22
Construction E/G 13 Elements in 12 Groups
Coatings Multi-layer
Angle of View 103.96 - 64.74
Minimum Focus Distance 0.9 ft (0.279 m)
Macro Ratio 1:4.82
Zooming System Rotary Type
Aperture Blades 9
Filter Size 82mm
Maximum Outer Diameter 3.5 in (88.90mm)
Lens Width 3.5 in (88.90mm)
Lens Length 3.7 in (93.98mm)
Weight 1.3 lbs (600g)
Lens Hood BH-821
Mounts Canon Full Frame, Nikon Full Frame