Canon EOS 7D Mark II (G) Instruction Manual page 236

w: HDR (High Dynamic Range) ShootingN
If the image-recording quality is set to RAW, the HDR image will be
recorded in 73 quality. If the image-recording quality is set to
RAW+JPEG, the HDR image will be recorded in the JPEG quality set.
HDR shooting is not possible with ISO expansion (H1, H2). HDR
shooting is possible within ISO 100 - ISO 16000.
The flash will not fire during HDR shooting.
During HDR shooting, [Disable] will be applied for [Distortion], [z2:
Auto Lighting Optimizer], [z3: Highlight tone priority], and [z5:
Expo. simulation].
AEB cannot be set.
If you shoot a moving subject, the subject's movement may leave
afterimages.
In HDR shooting, 3 images are captured with different shutter speeds set
automatically. Therefore, even in <s> and <a> shooting modes, the
shutter speed will be shifted based on the shutter speed you set.
To prevent camera shake, a high ISO speed may be set.
236
Take the picture.
8
HDR shooting is possible with
viewfinder shooting and Live View
shooting.
<w> will be displayed on the LCD
panel.
When you press the shutter button
completely, three consecutive images
will be captured, and the HDR image
will be recorded to the card.