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The frustum is visible as a yellow frame when a camera is selected
Moving a Camera
Switch the viewport to “Camera View” and rotate, pan or zoom the view as explained earlier (ALT + mouse). This mode only affects the origin of the camera. In order to pan or rotate the camera as well as the target of the camera, use the shortcut ALT + SHIFT + mouse.
The camera can also be moved using its translate handles. Select the camera from the Camera List panel, and press the move icon from the top row of icons. The translate handles appear and you can move the camera without moving its target.
You can use the ‘L’ key on your keyboard to go through different camera move modes. By default only the camera will move when using the transform handles.
Press L once to only move the camera target. You will see the text Editing From change to Editing To at the bottom of the viewport.
Press L again to return to the default camera mode where you are only moving the camera.
Press L once again to move both the camera target and the camera itself. You are now Editing From-ToPlease see the Viewports and Navigation page for details.
Hidden and Locked Cameras
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These and the rest of the cameras features are explained on the Cameras List panel and the Camera Parameters panel sections.
Hide/Unhide and Lock/Unlock a camera on its Camera Parameters panel
Projection
You can choose whether the selected camera should be a perspective camera (3D projection) or any of the 2D orthographic projections (Top, Left, Right etc.).
Camera focus ring