Tokina 20-35mm F2.8 AT-X 235 AF PRO
|release year:||1990 ?|
|D type lens:||No|
|AF Drive:||In Body|
|AF-D (a99 only):||No|
|angle of view:||94,4 - 63,4|
|min. focus distance(mm):||250|
|filter rotate focusing:||No|
|filter rotate zooming:||No|
|max. magnification:||data needed|
|standard accessories:||Dedicated lens hood, fitted soft case|
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20-35mm F2.8 AT-X 235 AF PRO
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.