Canon EOS R6 Mark II Mirrorless Camera with 24-105mm f/4-7.1 Lens - Manual (Page 429)

Note
The maximum brightness value does not reach 100% when HDR-PQ is set. Note
that the maximum brightness value varies depending on [
: Highlight tone
priority ] and [ : Picture Style ] settings.
The maximum brightness value does not reach 100% when Canon Log is set.
Checking the zebra display level in advance is recommended when you will set
[
Zebra pattern ].
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