Tokina has announced the release of its new ATX-i 11-16mm F2.8 CF lens for Canon EF and Nikon F mount crop-sensor cameras.

The re-designed lens is constructed of 13 elements in 11 groups, including two aspherical elements, a ‘large’ aspherical P-MO element and two all-glass molded low dispersion (SD) elements.
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https://www.dpreview.com/news/2417167888/tokina-launches-redesigned-atx-i-11-16mm-f2-8-cf-lens-for-canon-ef-nikon-f-mounts