AT-X 235 AF PRO

Wide-Standard Zoom
20-35mm f/2.8 AF
Mounts: Canon EF, Sony A, Nikon F
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Full Frame
Sensor Size
2005
Discontinued in
77mm
Filter Size
585g
Weight
Accessories
Aspherical Optics Internal Focus System Multi-Coating One Touch Focus Clutch Mechanism
Description
Specifications
Reviews
Description

The AT-X 235 AF PRO is a wide-angle zoom lens that will produce dynamic images, which are sharp from edge to edge. The fast, constant maximum aperture of f/2.8 makes wide-angle photography, like reportage, effortless in difficult lighting situations such as indoors or at dusk.

Two Pioneering all-glass aspherical lens elements, one front and rear, (F&R aspherical) are employed to eliminate wide-angle spherical astigmatism and correct edge/marginal light rays for superb image quality. Hoya Corporation, the world’s largest optical glass manufacturer, has created a micron-tuned precision molding technique with the accuracy to form aspherical surfaces to the thousandths of a millimeter. These aspherical elements, as well as 11 more of the remaining 13, receive Tokina's unique multi-coatings to further improve optical performance.

Continuing the tradition of AT-X, this AT-X PRO series lens boasts a solid, all metal construction using duraluminum alloy. Tokina's Focus Clutch Mechanism allows maximum AF response and sensitivity while focusing manually.


LENS CONSTRUCTION MTF CHART
Specifications
General info
Model
AT-X 235 AF PRO
Model Description
Tokina AT-X 235 AF PRO (20-35mm f/2.8)
Series
AT-X PRO
Type
Wide-Standard Zoom
Sensor Size
Full Frame
Discontinued in
2005
Repair Capability
No
Mount
Canon EF, Nikon F, Sony A
Color
Black
Country of Origin
Japan
Main specifications
Focal Length
20-35mm
Maximum Aperture
f/2.8
Minimum Aperture
f/22
Automatic Aperture
Yes
Manual Aperture Ring
Yes
Angle of View
93°-63°
Minimum Focusing Distance
0.25m
Macro Ratio
1 : 11.6
Focusing Mode
Automatic
Manual Focusing Ring
Yes
Autofocus Switch
Clutch Ring
Focusing Type
Internal Focus
Filter Size
77mm
Coating
Multi-coating
Construction
Construction E/G
15 Elements in 11 Groups
Aperture Blades
8
Lens Hood
BH-773
Electrical Contacts
Yes
Additional info
Dimensions
84x86 mm
Weight
585g
Reviews