How to fix the zoom ring on the EF 70-300mm f/4.5-5.6 DO IS USM.

Article ID: ART154145 | Date published: 06/09/2015 | Date last updated: 08/17/2015
 

Description

How to fix the zoom ring on the EF 70-300mm f/4.5-5.6 DO IS USM.

Solution

The zoom ring can be locked to fix the lens at the shortest setting.  The function is convenient for carrying a camera on a strap because it prevents the lens from extending.

1. Turn the zoom ring to the widest position (70mm).

  • The zoom ring can only be locked at the maximum wide angle.

2. Slide the zoom ring lock level 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.

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