Remote Control Mode

Nikon D7000 shooting menu Remote Control ModeExplanation: This menu defines for how long the receiver for remote control signals will stay on standby after you have activated it with the
release mode dial – 1, 5, 10 or 15 minutes.

Tips: The only reason to use the shortest period as a default is to save batteries.

I would increase the time when using a remote control – better a bit too long in standby than missing a photo.

As a remote control you need the inexpensive ML-L3 from Nikon.