- Mar 2, 2012
No, camera does *not* have to know "what user wants to focus on". Have a look at Canon EOS R ... on-sensor (DP) AF system with 5000+ AF fields, covering (almost) the entire frame, accurate enough to allow "targetting" any desired point in the frame to AUTO-focus on. Even when camera is locked down on tripod.
No need whatsoever for "manual focusing by twiddling a ring on a lens" today - other than for personal preference. No problem, those who do can choose any lens. But I would like to finally have a choice of "pure-AF" lenses too.
And in a situation where the scene or lighting or both is such that none of those 5000+ AF locations are able to achieve focus (I, for example, have never successfully autofocused on a starscape), even those which are located where the photographer doesn't want to focus, the EOS-R has a really neat option: not taking a picture at all! Personally, I'd rather twiddle the ring.