21:52 0 + Sony a9 'real-time tracking' update makes it the highest scoring camera in its class16:00 0 + Gallery: photographing parkour with the Sony a9
17:00 0 + Sony's 'Real-time tracking' is a big leap forward for autofocus21:58 0 + Sony releases machine vision sensor capable of 1000 fps object tracking
17:26 0 + Not quite as good? Nikon D850 versus Nikon D5 subject tracking13:00 0 + Subject tracking: Why it matters to us and why it should matter to you