I already reported on PhotoRumors about the upcoming Laowa Zero-D 12mm f/2.8 distortion-free lens (close-to-zero distortion) from Venus Optics that will be officially announced next week, on July 30th. I just received the first picture of the Nikon F-mount version of the lens:
The Nikon version of the lens is with automatic diaphragm and aperture coupling. The lens will be launched through Kickstarter. The retail price will be USD 949, early birds will be able to get discounts. Venus Optics Laowa lenses are available for sale at B&H.