The Tokina AT-X 16-28 F2.8 PRO FX will ship first in Nikon-mount form from August 6th 2010, with a Canon-mount variant to follow shortly afterwards from mid-September 2010. Suggested retail pricing before tax is set at ¥118,000 (roughly equivalent to US$1,350, ignoring exchange rate fluctuations, taxes and duties).
The AT-X 16-28 lens has a maximum aperture of f/2.8 across the zoom range, and is designed for use with full-frame digital SLRs. The lens design incorporates a new SD-M (Silent Drive-Module) DC autofocus motor and GMR high-precision magnetic AF sensor, which together aim to reduce focusing noise and increase both speed and accuracy. The optical formula includes 15 elements in 13 groups, with an aspheric P-MO element, three super-low dispersion (SD) glass elements, and two aspheric glass elements. The AT-X 16-28 F2.8 also includes Tokina's one-touch focus clutch mechanism, a nine-bladed aperture, multilayer coatings, and dust / water resistant sealing. Maximum magnification is 1:5.26, and focusing is possible to as close as 28 centimeters. The lens doesn't have any filter threads, and includes a built-in petal hood with custom cap. Barrel length is 133.3mm, with a diameter of 90mm, and the lens weighs 950 grams.
Ten sample photos captured by Ryousuke Takahashi using the lens can be found on the Tokina website. No announcement has been made as regards availability outside the Japanese market.
The Tokina AT-X 16-28 F2.8 PRO FX lens.
Photo provided by Tokina Corp.