The lens is constructed of 13 elements in 11 groups including two aspherical and two super low-dispersion (SD) glass elements. There are 9 aperture blades and the optical elements use Tokina’s proprietary coating to help minimize ghosting and flare.
The lens has a maximum aperture of F2.8 and a minimum aperture of F22. The minimum focusing distance is 0.19m and the magnification ratio is 1 : 9.2.
On the lens body you’ll find a manual focus ring and a 67mm front-filter thread. Autofocus is driven by Tokina’s stepping motor (ST-M) and the lens is fully-compatible with Sony’s IBIS and Eye AF. There’s also an integrated Micro USB port for firmware updates.
Then lens measures 74mm (2.9”) in both diameter and length and weighs in at 335g (11.8oz).
The Tokina atx-m 11–18mm F2.8 E is already available to order and ship for $599 in the US.
|Model||Tokina atx-m 11-18mm F2.8 E|
|Angle of View|
|Optical Construction||13 Elements in 11 Groups|
|Minimum Focusing Distance||0.19m|
|Maximum Magnification Ratio||1 : 9.2|
Further details and sample images are available on Tokina’s website.
Here’s a collection of early reviews.