Right-click any viewport label. > Views > Choose a camera.
Keyboard > C
A Camera viewport shows the view from a camera, looking in the direction it's aimed.
Camera viewport controls include the following. Two of these controls are available in all viewports.
Zoom Extents All, Zoom Extents All Selected (available in all viewports)
Maximize Viewport Toggle (available in all viewports)
Activate a Camera view from the viewport right-click menu, under Views. If the scene contains more than 10 cameras, the last entry in the list is "More Cameras.” Choose this to display the Choose A View dialog, which shows the complete list.
If a single camera is selected and you press C, the active viewport switches to the view from that camera. If, when you press C, the scene contains more than one camera and no camera or multiple cameras are selected, the Select Camera dialog appears; choose a camera from the list.
