This is the very first image of the new Sony 400mm f/2.8 GM OSS FE lens! It has been spotted in PyeongChang by Photoofthelife. The lens is scheduled to be launched this September according to BHphoto.
But don’t get too excited! The lens will be priced at $10,000+ just like the Canon and Nikon versions. If you got rich with Bitcoins you might can afford it :)
Anyway, this lens is made for professional sports photographer. Combined with the Sony A9 it will make a terrific package competing against the Canon/Nikon duopoly.