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- #41
Canon showed some new auto focus technology at NAB where they "steal" some of the image from the lens and hit a focusing sensor, but I think tape measures and focus pullers will be near the lens for a few more years.
Here is a report on the new Canon lens technology, but it may not be suitable for narrative work.
Rosco
http://hd.broadcastnewsroom.com/articles/viewarticle.jsp?id=126260
The Canon DIGISUPER 100AF and DIGISUPER 86AF lenses (model numbers XJ100x9.3B AF and XJ86x9.3B AF, respectively) create an operator-controllable window in the HD camera’s viewfinder that targets the object operators want to focus most sharply on in the scene. Camera operators can change the window’s position and size by means of a miniature joystick on the camera handle’s focus servo control. An additional button provides three modes of operation:
1) Part-Time – actuates the auto-focus system as long as a control button is depressed.
2) Full-Time – actuates the auto-focus continually on selected moving objects such as racing cars (which might be speeding toward the camera position), or for shooting situations entailing full-servo robotic operation.
3) Off – allows for normal, unassisted lens focus.