Canon EOS 5Ds Instruction Manual page 424

83: Custom ControlsN
: One-touch image quality setting
Pressing the button assigned to this function will switch to the image-
recording quality set here. While this change is in effect, the image-
recording quality (JPEG/RAW) will blink in the viewfinder (with [Show/
hide in viewfinder]'s [Image quality] checkmarked). After the shooting
ends, the One-touch image quality setting will be canceled and the
image-recording quality will be switched back to the previous quality.
*6:On the setting screen, by pressing the <B> button, you can select the image-
recording quality for this function.
: One-touch image quality (hold)
Pressing the button assigned to this function will switch to the image-
recording quality set here. While this change is in effect, the image-
recording quality (JPEG/RAW) will blink in the viewfinder (with [Show/
hide in viewfinder]'s [Image quality] checkmarked). Even after
shooting, the One-touch image quality setting will not be canceled. To
revert to the previous image-recording quality setting, press the button
assigned to this function again.
*6:You can select the image-recording quality for this function by pressing the <B>
button in the setting screen.
: Image quality
Press <0> to display the image-recording quality setting screen
(p.149) on the LCD monitor.
If RAW or RAW+JPEG is set for the image-recording quality to be switched
to with [One-touch image quality setting] and [One-touch image quality
(hold)], [Multi Shot Noise Reduction] (p.183) will not work after the switch.
For [z3: High ISO speed noise reduct'n], [Standard] will be applied for
shooting.
When the image-recording quality is switched with the One-touch image
quality setting, you can display <z> in the viewfinder (p.409).
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