Canon EOS RP Advanced User Guide - Page 589

Performance Data In [M] Mode zz For Full HD/HD movies with ISO speed set to [AUTO], ISO speed is automatically set in a range of ISO 100-25600. zz For 4K movies with ISO speed set to [AUTO], ISO speed is automatically set in a range of ISO 100-12800. zz When setting ISO Auto, setting [Max for Auto] or [H Max for Auto] under [z: kISO speed settings] to [H2(102400)] (=286) expands the maximum limit of the automatic ISO speed setting range to H2 (equivalent to ISO 102400). You can lower the maximum value to narrow the automatic ISO speed setting range. zz You can set the ISO speed manually in a range of ISO 100-25600 for Full HD/HD movies and ISO 100-12800 for 4K movies. Note that under [z: kISO speed settings], setting [ISO speed range] or [Range for H] to [H2(102400)] (=286) expands the maximum limit of the manual ISO speed setting range to H2 (equivalent to ISO 102400). Note that you can also set the [Maximum] and [Minimum] to a range narrower than the default range. zz If [z: Highlight tone priority] is set to [Enable] (=137), the automatic and manual ISO speed setting range's minimum limit will be ISO 200. Even when ISO speed expansion is set, the maximum limit will not be expanded. 589