Canon EOS R3 Advanced User's Manual page 1024

Exposure control
Metering functions under various shooting conditions
Item
Metering sensor
Shooting mode
Evaluative
metering
Partial metering
Metering mode
Spot metering
Center-weighted
average
metering
Metering brightness range (at room
temperature, ISO 100)
* 1: Same applies when set to [1.6x (crop)].
ISO speed (recommended exposure index) in still photo shooting
Manual ISO speed setting for still photos
Normal ISO speed
Expanded ISO speed
* When set to [Highlight tone priority], the available manual setting range is ISO 200–102400.
* Expanded ISO speeds cannot be set in HDR mode or for HDR shooting (HDR PQ).
Manual ISO speed setting range for still photos
ISO speed range
Minimum
Maximum
ISO Auto setting range for still photos
Auto range
Minimum
Maximum
Still photo shooting
384-zone (24×16) metering using image sensor output signals
Fv / P / Tv / Av / M / BULB / C1 / C2 /
C3
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* Approx. 5.9% in the center of the screen
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* Approx. 2.9% in the center of the screen
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EV –3 to 20
ISO 100–102400 (in 1/3 or 1-stop increments)
L (equivalent to ISO 50), H (equivalent to ISO 204800)
L (equivalent to ISO 50) to ISO 102400 (in 1-stop increments)
ISO 100 to H (equivalent to ISO 204800, in 1-stop increments)
ISO 100–51200 (in 1-stop increments)
ISO 200–102400 (in 1-stop increments)
1024
Movie recording
P / Tv / Av / M / C1 / C2 / C3
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* When faces are detected
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* When no faces are detected
* When set to Canon Log 3
EV –1 to 20
ISO speed
ISO speed
ISO speed
*1