Canon RF-S 18-150mm F3.5-6.3 IS STM, Instructions Manual

ENG-7

2. Focusing/control ring

The focusing/control ring can be used as either a 

focusing ring or a control ring.

Focusing/control ring

Switching between the focusing ring and control 

ring is performed on the camera.

This can only be used as a focusing ring on 

cameras that do not support switching*.

Please refer to the camera’s instructions for 

details.

* EOS R, RP, Ra, R5, R6

Use as a Focusing Ring

Set the focus mode (AF/MF) on the camera.

To shoot in autofocus (AF) mode, set the 

camera’s focus mode to AF.

To use only manual focusing (MF), set the 

camera’s focus mode to MF, and focus by turning 

the focusing ring (focusing/control ring).

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 When the AF does not operate after switching the 

focus mode from [MF] to [AF] and when the focus 

mode is not displayed on the camera’s menu, turn 

the focus ring in the direction of [Infinity] until the 

focusing position is within the [AF in-focus range].

•  It is not possible to switch the focus mode to [AF] 

if the focus lens’s focusing position is within the 

[MF-only range], at which the focus can only be 

aligned in the MF mode.

•  Refer to 3. Taking Closeup Shots in the Manual 

Focusing (MF) Mode for further details.