Panasonic HC-VX870 Owner's Manual page 52

≥ When recording with [Backup for Twin Camera], use an SD card conforming to Class 10 of
the SD Speed Class Rating.
≥ Scenes recorded as Backup for Twin Camera and scenes that show the Sub Window's image will
be saved on the same media. This causes the remaining recordable time to be halved.
≥ When [ON] is selected, two separate dates are used to record scenes simultaneously. As a result,
compared to when [OFF] is selected, recording can be performed on fewer days.
≥ Backup for Twin Camera operates when it is set to [ON], even if you hide the Sub Window.
≥ You cannot record still pictures while recording with the Backup for Twin Camera function.
≥ Backup for Twin Camera is not available when any of the following functions is being used:
j Creative Control
j FULL HD Slow Motion Video Mode
j HDR Movie Mode
j WX970 VX870
/
4K Photo Mode
j Home monitoring
j Live Cast Mode
- 52 -