Canon EOS 5Ds Instruction Manual page 229

The image-recording quality, ISO speed, Picture Style, high ISO speed
noise reduction and color space, etc. set for the first single exposure will
also be set for the subsequent exposures.
You cannot use crop shooting or shoot with a set aspect ratio for multiple
exposures. [Full-frame] will be applied for [z4: Crop/aspect ratio] for
shooting.
During multiple exposure shooting, the settings of [z1: Lens
aberration correction], [z2: Auto Lighting Optimizer], and [z3:
Highlight tone priority] will be automatically switched to [Disable].
If [z3: Picture Style] is set to [Auto], [Standard] will be applied for
shooting.
If [On:Func/Ctrl] and [Additive], [Bright], or [Dark] are both set, the
image displayed during shooting may look noisy. However, when you
finish shooting the set number of exposures, noise reduction will be
applied and the final multiple-exposure image will be less noisy.
If you perform Live View shooting while [On:ContShtng] is set, the Live
View function will stop automatically after the first shot is taken. From the
second shot onward, shoot while looking through the viewfinder.
When [On:Func/Ctrl] is set, you can press the <x> button to view the
multiple exposures taken so far or delete the last single exposure (p.232).
Shoot subsequent exposures.
9
When [On:Func/Ctrl] is set, the
merged multiple-exposure image will
be displayed.
With Live View shooting, the multiple-
exposure images merged so far will
be displayed. By pressing the
<B> button, you can display only
the Live View image.
After you shoot the set number of
exposures, multiple-exposure shooting
will exit. With continuous shooting,
after you finish shooting the set number
of exposures while holding down the
shutter button, the shooting will stop.
P Multiple ExposuresN
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