# rpicam-hello

> View a live camera stream using a Raspberry Pi camera.
> More information: <https://www.raspberrypi.com/documentation/computers/camera_software.html#rpicam-hello>.

- Display a camera preview stream for a specific amount of time (in milliseconds):

`rpicam-hello -t {{time}}`

- Tune the configuration for a particular camera sensor:

`rpicam-hello --tuning-file {{/usr/share/libcamera/ipa/rpi/path/to/config.json}}`
