Tokina 12-24mm f/4 AT-X Pro DX
Solid build. Nice contrast. Constant f/4.0 aperture. Good sharpness, but some CA and flare problems. Measured zoom range is closer to 13-23 mm. The lens is usable on a FX body with little vignetting from 17 mm with no lens hood, and from 18 mm with lens hood mounted.
Nikon mount versions have no built-in focus motor, but the new version comes with a focus motor.
Rating: Ed: -, User: - (normalized, 0=useless, 50=average, 100=excellent).
Mounts: Canon EF, Nikon F.
Optical zoom: 2x.
Focus: AF (Nikon version requires in-body focus motor).
IR: Poor IR performance.
Approximate street price: USD 400 (new, w/o tax).
Discontinued: 2009, replaced by: Tokina 12-24mm f/4 AT-X Pro DX II.
The Tokina brand is used by the Kenko-Tokina group for lenses, filters and CCTV equipment. Tokina started out as an independed company founded in 1950 as Tokyo Optical Equipment Manufacturing by a group of former Nikon engineers. It was renamed Tokina Optical Co. Ltd. in 1971 and Tokina Co. Ltd. in 1995. In June 2011, Tokina merged with its distributor Kenko to form Kenko-Tokina. Until then, Tokina was the smallest of the Japanese independent lens makers.
The corporate relationship between Kenko-Tokina and another Japanese optical industry, Hoya, is unclear. Kenko-Tokina and Hoya promote each others products. In the USA, Tokina, Hoya and Kenko-branded products are distributed by the same company (THKphoto.com).
An obscure brand of flash units, Woctron, is also distributed by Kenko-Tokina.