Canon EOS 4000D Instruction Manual page 171

Cautions for Shooting Video Snapshots
You can add to an album only video snapshots with the same duration
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(approx. 2 sec., 4 sec., or 8 sec. each).
Note that if you do any of the following while shooting video snapshots, a
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new album will be created for subsequent video snapshots.
• Changing the [Movie rec. size] (p.166).
• Changing the [Video snapshot]'s shooting time (p.168).
• Changing the [Sound rec.] setting from [Auto]/[Manual] to [Disable]
or from [Disable] to [Auto]/[Manual] (p.176).
• Opening the card slot/battery compartment cover.
• Updating the firmware.
The sequence of snapshots in an album cannot be changed.
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Video snapshots taken afterward cannot be added to an existing album.
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The shooting duration of a video snapshot is only approximate.
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Depending on the frame rate, the shooting duration displayed during
playback may not be exact.
3 Shooting Video Snapshots
171