Canon EF 400mm f/4 DO IS USM Manuale di istruzioni - Pagina 12
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6. Power Focus (PF) Mode
Using the playback ring enables smooth focus change.
This is a useful feature for changing focus when shooting movies.*
With the focus preset switch set to OFF, set the focus mode
switch to PF.
When the playback ring is rotated in a certain direction, focus changes in the same direction as when
the focusing ring is rotated.
You can make a 2-step change in focus shift speed depending on the angle that the playback ring is
rotated to.
1
Power focus (PF) will work while a Live View image is displayed on the camera or when shooting movies for the
*
following cameras:
EOS-1D X, EOS 5D Mark III, EOS 6D, EOS 70D, EOS REBEL T5i/700D, SL1/100D, T4i/650D, T5/1200D
2
EOS M2*
and EOS M when used together with Mount Adapter EF-EOS M
1
Rotate the playback ring to
change the focus.
2
*
Not available in certain countries and regions.
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