Focusing on the Sony PMW-EX1/EX3
Like all wide adapters, the Century .6X attachment uses the macro feature of the camera to achieve focus. Be sure the macro mode is enabled and the focus gear is engaged to auto focus, rotate ring 180 degrees.
NOTE: The full manual focus mode will not allow the adapter to focus and therefore CANNOT be used in conjunction with wide adapters.
...Is this really necessary to keep it on Auto. I'm worried the focus might hunt throughout the duration of the shoot.
I have that adapter and i have never put my camera in autofocus mode.....what they mean by that is snap the focus ring away from you so it doesnt have the hard stop in both directions....in other words, if you can spin the rind around an till infinity, you'll be able to adjust the focus to get it just right.
I'm sorry for not having all the technical terms down, but if you have the camera you should understand what i'm saying.