Canon RF-S 18-150mm F3.5-6.3 IS STM Instructions Manual page 8

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).
When the AF does not operate after switching the
z
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.
ENG-7