egproductions
Veteran
Posting in the 5D section because the two super-telephoto lenses that were announced have a semi-servo focus sounding feature.
Here is an excerpt from Ken Rockwell's site:
Helping moviemakers achieve smoother and more appealing focus shifts when filming on EOS DSLR cameras, Canon has included a new Power Focus (PF) mode on the Company's two new super telephoto lenses. This mode allows manual rack focusing to be operated smoothly by turning a playback ring that is normally used for the focus preset function. Both low-speed and high-speed focus shifting are available.
Personally, this is only going to be usefull to me if it allows for accurate focus marks.
The two lenses are the Canon EF 300mm f/2.8L IS II USM (7K) and the Canon EF 400mm f/2.8L IS II USM (11K)
Here is an excerpt from Ken Rockwell's site:
Helping moviemakers achieve smoother and more appealing focus shifts when filming on EOS DSLR cameras, Canon has included a new Power Focus (PF) mode on the Company's two new super telephoto lenses. This mode allows manual rack focusing to be operated smoothly by turning a playback ring that is normally used for the focus preset function. Both low-speed and high-speed focus shifting are available.
Personally, this is only going to be usefull to me if it allows for accurate focus marks.
The two lenses are the Canon EF 300mm f/2.8L IS II USM (7K) and the Canon EF 400mm f/2.8L IS II USM (11K)
