Ask a Question

Using Power Focus (PF) Mode on the EF 300mm f/2.8L IS II USM lens

Article ID: ART174612 | Date published: 05/31/2019 | Date last updated: 05/31/2019
 

Description

Using Power Focus (PF) Mode on the EF 300mm f/2.8L IS II USM lens

Solution

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.
Rotate the playback ring to change the focus.
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.
 

Rate this Article
Was this article helpful?
Yes, This document is helpful
No, This document needs a clearer explanation
 
Please provide your comments