Canon EOS 7D Mark II (G) Instruction Manual page 243

Merging Multiple Exposures with an Image Recorded on the Card
You can select an image recorded on the card as the first single
exposure. The original of the selected image will remain intact.
You can only select 1 images. You cannot select 41/61 or
JPEG images.
The following cannot be selected as the first single exposure: Images
shot with [z3: Highlight tone priority] set to [Enable], images whose
[Aspect ratio] is set to any setting other than [3:2] (p.295), and images
having cropping information (p.443).
[Disable] will be applied for [z1: Lens aberration correction], [z2:
Auto Lighting Optimizer], and [z3: Highlight tone priority] regardless
of the settings of the RAW image selected as the first single exposure.
The ISO speed, Picture Style, high ISO speed noise reduction, and color space,
etc. set for the first 1 image will also apply for the subsequent images.
If [z3: Picture Style] is Auto for the RAW image selected as the first
single exposure, Standard will be applied for shooting.
You cannot select an image taken with another camera.
Select [Select image for multi. expo.].
1
The images on the card will be
displayed.
Select an image.
2
Turn the <5> dial to select the
image to be used as the first single
exposure, then press <0>.
Select [OK].
The file number of the selected image
will be displayed at the bottom of the
screen.
Take the picture.
3
When you select the first image, the
number of remaining exposures as set
with [No. of exposures] will decrease
by 1. For example, if [No. of
exposures] is 3, you can shoot two
exposures.
P Multiple ExposuresN
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