Canon EOS 80D - Manual (Page 211)

211
w : HDR (High Dynamic Range) ShootingN
 When shooting HDR images with [Auto Image Align] set to [Enable],
AF point display information (p.352) and Dust Delete Data (p.405) will
not be appended to the image.
 If you perform handheld HDR shooting with [Auto Image Align] set to
[Enable], image periphery will be slightly trimmed and resolution will be
slightly lowered. Also, if the images cannot be aligned properly due to
camera shake, etc., auto image alignment may not take effect. Note that
when shooting with excessively bright (or dark) exposure settings, auto
image alignment may not work properly.
 If you perform handheld HDR shooting with [Auto Image Align] set to
[Disable], the 3 images may not be properly aligned and the HDR effect
may be minimal. Using a tripod is recommended.
 Auto image alignment may not work properly with repetitive patterns
(lattice, stripes, etc.) or flat, single-tone images.
 The color gradation of the sky or white walls may not be reproduced
correctly. Irregular exposure, irregular colors, or noise may appear.
 HDR shooting under fluorescent or LED lighting may result in unnatural
color reproduction of the illuminated areas.
 With HDR shooting, it takes some time to record images to the card
since they are merged after 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.
 If you change the shooting mode or switch to movie shooting after setting
HDR shooting, HDR shooting setting may be cleared ([Adjust dyn
range] setting may be switched to [Disable HDR]).