Canon EOS R5 C User Manual page 134

Maximum Burst for Continuous Shooting
The approximate maximum burst is displayed at the upper left of the shooting screen and
lower right of the viewfinder.
Note
If the maximum burst is displayed as "99", it indicates that you can shoot 99 or
more shots continuously. Fewer shots are available for a value of 98 or lower, and
when [BUSY] is displayed on the screen, internal memory is full and shooting will
stop temporarily. If you stop continuous shooting, the maximum burst will increase.
After all captured images have been written to a card, you can once again shoot at
the maximum burst listed in
Maximum burst for continuous
Still photo file size / Number of possible shots /
shooting.
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