The Tokina AT-X 17-35mm F/4 is designed for full-frame cameras to 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.

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 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.

The AT-X 17-35 is only water-resistant, not water-proof and is not designed to be submerged or used unprotected in heavy rain.

Focal Length: 17 - 35mm

Maximum Aperture: f/4.0

Minimum Aperture: f/22

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-82

Mounts: Canon EF

Notes: The AT-X 17-35 is only water-resistant, not water-proof and is not designed to be submerged or used unprotected in heavy rain.

Warranty: 3 Year Limited Warranty