Vision Systems just upped the 4k speed barrier by a near order of magnitude with the launch of its Phantom Flex4K cinema camera at NAB. Starting at $110k, it builds on its Phantom Flex predecessor with up to 1,000 fps in 5 second bursts at 4k, 2,000 fps in 2k and 3,000 fps at 720p resolution -- speeds that'll net you almost three minutes of 4k video when played back at 24 fps. The full 16:9 Super 35 sensor-equipped model can be
