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Setting the Focus Mode on the EF 400mm f/4 DO IS USM lens

Article ID: ART174655 | Date published: 06/03/2019 | Date last updated: 06/03/2019
 

Description

Instructions for setting the Focus Mode on the EF 400mm f/4 DO IS USM lens

Solution

Setting the Focus Mode



To shoot in autofocus (AF) mode, set the focus mode switch to AF.
To shoot in manual focus (MF) mode, set the focus mode switch to MF, and focus by turning the focusing ring. The focusing ring always works, regardless of the focus mode.
 
After autofocusing in ONE SHOT AF mode, focus manually by pressing the shutter button halfway and turning the focusing ring. (Full-time manual focus.)

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