Do one of the following:
- Go to the Display panel and on the Hide By Category rollout, turn Cameras on or off.
- Choose Tools menu
Display Floater, and on the Object Level tab, turn Cameras on or off.
When Hide Cameras is off, cameras appear in viewports; when Hide Cameras is on, they don't appear.
When camera icons are displayed, the Zoom Extents commands include them in views. When camera icons are not displayed, the Zoom Extents commands ignore them.