Canon EOS R50 Mirrorless Camera (White) - Manual (Page 198)

ISO Speed Settings for Still Photos
Maximum Auto ISO Speed
Set the ISO speed (image sensor's sensitivity to light) to suit the ambient light level. In Basic
Zone modes, ISO speed is set automatically.
For details on ISO speed in movie recording, see
ISO Speed in Movie Recording .
1.
Press the < > button.
2.
Set the ISO speed.
Turn the < > dial to set it.
ISO speed can be set within ISO 100–32000 in 1/3-stop increments.
With [ AUTO ] selected, ISO speed is set automatically.
When [ AUTO ] is selected, pressing the shutter button halfway will
display the ISO speed actually set.
You can also press the < > button to set the speed to [ AUTO ].
ISO speed guide
Low ISO speeds reduce image noise but may increase the risk of camera/subject shake
or reduce the area in focus (shallower depth of field), in some shooting conditions.
High ISO speeds enable low-light shooting, a larger area in focus (deeper depth of field),
and longer flash range but may increase image noise.
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