Sony has just announced the new a6300 mirrorless camera (Amazon/B&H Photo/Adorama), here are first several small size sample images of new a6300.
And here are several Sony a6300 4K sample movies from Youtube:
α6300 -Fast Hybrid AF in 4K movies | α | Sony
α6300 -Advanced 4D FOCUS | α | Sony
α6300 -Ultimate resolution 4K movie in Super 35mm | α | Sony
α6300 -5x Slow Motion in Full HD | α | Sony
α6300 -Fast Hybrid AF for movies comparison in Full HD | α | Sony