To launch camera in Moto X, you can either:
2. or quickly twist your wrist twice at any time
Once camera is started, touch anywhere on the screen to take the photo.
Burst: Touch and hold the screen to take multiple shots.
Drag up or down with one finger to zoom between 1X – 4X.
Capture a still shot during a video recording
You can also take still pictures when video is being recorded. Touch anywhere on the screen while recording to save a photo.
Adjust camera settings
To access camera settings, swipe the screen right to view these camera options as shown below.
To change camera settings, rotate the dial and adjust the settings as desired. This includes HDR, Flash, Focus,Slow motion, Panorama, Geo-Tag, Shutter tone and Quick capture