Canon EF 24-70mm f/4L IS USM Instructions Manual page 8

4. Fixing the Zoom Ring
The zoom ring can be fixed to keep the lens at the shortest point. This function is convenient for
carrying a camera on a strap because it prevents the lens from extending.
1
Rotate the zoom ring to the
widest position (24 mm).
The zoom ring can only be locked at maximum wide angle.
2
Slide the zoom ring lock
lever in the direction
indicated by the arrow.
To release the zoom ring,
● ●
slide the zoom ring lock lever
in the direction opposite to
the arrow.
ENG-7