MatrixBlackRock wrote in post #18500994
That's the way you want it, if a camera has auto focus, when shooting video the AF should be turned off. While AF is handy for stills, simply because your a looking through the view finder and you know the AF point is where you wish it to be, with video it can shift from where you want it to be and refocus on something that is not the subject of the video, blowing the clip and forcing a retake, which is not always possible.
Wayne
Have you used recent versions of Canon’s DPAF for video? I find it quite useful. So do others. Many, many others!
MatrixBlackRock wrote in post #18500693
...Professional camcorders are all manual focus...
Your information is a little dated. For example, the Canon C300 Mk. II, everyone’s darling documentary camera of the moment is seeing a lot of broadcast time. DPAF! It’s got recent generation AF, but no touch screen. C200 has all the latest, including touch-screen targeting.
MatrixBlackRock wrote in post #18500693
...the last thing in the world you need is for an auto focus system to decide to refocus of something other than your subject...
That’s true. Equally embarassing is when *you* blow focus.
Cinematographers tend to use manual focus because they *are* in control of the set, and can do retakes as needed when they blow focus. For them, focus is another compositional tool, and frequently want to use focus creatively.
Videographers have it tougher because they usually *aren’t* in control of the set. The latest AF technology makes their shots easier.
Tracking and having control of a visible focus target has made a big difference. Good control of AF targeting is a technique to be learned.
BTW, other camcorder manufacturers are also adopting DPAF...
But you’re welcome to any technique that works for you. Focus for HD on tiny LCDs is challenging, and not all shoots can accomodate a larger monitor that makes MF easier.
From the upper left corner of the U.S.
Photos, Video & Pano r us.
College and workshop instructor in video and audio.
70D, Sigma 8mm, Tokina f2.8 11-16, Canon EF-S f2.8 17-55, Sigma f2.8 50-150 EX OS, Tamron 150-600VC. Gigapan Epic Pro, Nodal Ninja 5 & R10.