Canon EOS R6 Mark II Mirrorless Camera with 24-105mm f/4-7.1 Lens - Manual (Page 185)

ISO Speed Range When Set Manually
You can set the manual ISO speed setting range (minimum and maximum limits). You can
set the minimum limit within L (equivalent to ISO 50) to ISO 102400, and the maximum limit
within ISO 100 to H (equivalent to ISO 204800).
1.
Select [ : ISO speed settings].
2.
Select [ISO speed range].
3.
Set [Minimum].
Select the [ Minimum ] box, then press the < > button.
Select an ISO speed, then press the < > button.
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