Tokina AT-X 14-20mm f2 PRO DX

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หมวดหมู่ : Lens APS-C DSLR Wide Zoom Photography Tokina AT-X Pro Series

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The Tokina AT-X 14-20 F2 PRO DX is a wide-angle zoom lens with super-fast F2 aperture. This is the fastest lens ever made by Tokina. The lens is designed for use with either Canon or Nikon DSLR cameras with APS-C (DX) sensors.

Tokina adds its fastest lens to date to its family of fast-aperture wide-angle zooms focused on providing photographers professional quality optics and construction at an affordable price. The extremely fast F2 aperture lens offers an equivalent 21-30mm** zoom range. The super-bright, constant F2.0 aperture makes viewing, auto focus and shooting possible in very low light situations while still maintaining reasonable size and weight.

The 14-20mm has an all-new proprietary optical design that uses three aspherical lens elements (2 all-glass molded and 1 P-MO lens). This combination achieves superior contrast and sharpness, and corrects for spherical aberrations. Additionally, Tokina uses four SD glass elements (Super-low Dispersion: FK01 and FK03) to control chromatic aberrations, distortion and astigmatism. Two of the elements are SD glass molded aspherical lenses.

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. 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.

 

Lens Constuction

MTF Chart

 

Focal Length
14-20mm
Max Aperture
F2
Min Aperture
F22
Construction
13 Elements in 11 Groups
Coatings
Multi-layer
Angle of View
91.68 - 71.78°
Min Focus Distance
0.9 ft (0.28 m)
Macro Ratio
1:8.36
Focusing Mode
Auto Focus
Zooming System
Rotary
Aperture Blades
9
SD Glass
4
Filter Size
82mm
Max. Outer Diameter
3.5 in (89mm)
Lens Length
4.2 in (106mm)
Sensor Size
APS-C/DX
Weight
1.6 lbs (725g)
Lens Hood
BH-823
Mount
Canon, Nikon
Warranty
2 Year Warranty
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