Canon EOS 6D Instruction Manual page 127

About [Multi Shot Noise Reduction]
The following functions cannot be set: AEB, WB bracketing, [z4: Long
exp. noise reduction], [z4: HDR Mode], [z4: Multiple exposure],
and RAW image. If any of these has already been set, [Multi Shot Noise
Reduction] cannot be set.
Flash shooting is not possible. The AF-assist beam will be emitted
according to the [8C.Fn II -5: AF-assist beam firing] setting.
You cannot set [Multi Shot Noise Reduction] for bulb exposures.
If you turn off the power or change the shooting mode to a Basic Zone
mode, movie shooting, or bulb, the setting will be changed to [Standard].
If the images are greatly misaligned due to camera shake or if there is a
moving subject, the noise reduction effect may be minimal.
If you are handholding the camera, keep it steady to prevent camera
shake. Using a tripod is recommended.
The image alignment may not function properly with repetitive patterns
(lattice, stripes, etc.) or flat, single-tone images.
Recording the image to the card will take longer than with normal
shooting. During the processing of the images, "buSY" will be displayed
in the viewfinder and on the LCD panel and you cannot take another
picture until the processing is completed.
[z4: Dust Delete Data] cannot be set.
If [Multi Shot Noise Reduction] is set, direct printing is not possible.
Select a setting other than [Multi Shot Noise Reduction] and perform
direct printing.
If you play back a 1 image with the camera or print an image directly, the
effect of the high ISO speed noise reduction may look minimal. Check the
noise reduction effect or print noise-reduced images with Digital Photo
Professional (provided software, p.393).
3 Noise Reduction SettingsN
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