At CP+, Kenko Tokina is showcasing the prototype of a new ultrawide-to-wide zoom lens designed for digital cameras with APS-C sized sensors. Intended to replace the critically acclaimed but somewhat shorter AT-X 12-24mm f4 PRO DX, the brand new Tokina AT-X 12-28mm f4 PRO DX offers users a 35mm equivalent focal range of 18-42mm on Nikon and ~19-45mm on Canon dSLRs. Weighing in at 600 grams, the Tokina AT-X 12-28mm f4 PRO DX features 14 elements in 12 groups and boasts a minimum focus distance of only 25mm from the sensor plane. Furthermore, the lens sports Tokina’s exclusive one-tocuh focus clutch mechanism that allows the photographer to switch between AF and MF simply by snapping the focus ring forward for AF and back toward the camera to focus manually. Pricing and availability to be announced.