Create panel > Cameras > Target button
Tab panels > Lights & Cameras tab > Target Camera
Target cameras view the area around the target object that you place when you create the camera. Target cameras are easier to aim than free cameras because you aim them as you create them. Use them when the camera and its target don't move.
You can animate both the target camera and its target to create interesting effects. To animate both the target and camera along a path, it is best to link them both to a dummy object, then animate the dummy.
Procedure
To create a target camera:
Do one of the following:
Click Cameras on the Create panel, then click Target in the Object Type rollout.
Click the Target Camera button on the Lights & Cameras tab of the tab panel.
Drag in a viewport. The initial point of the drag is the location of the camera, and the point where you release the mouse is the location of the target.
The camera is now part of the scene. It is aimed at the target, which is a separate object.
Set the creation parameters.
Interface
See Common Camera Parameters for a description of the common camera parameters.
The distance from the camera to the target is displayed at the bottom of the Parameters rollout. You can animate this parameter, or directly animate the target object's location.
When you rename a target camera, the target is automatically renamed to match. For example, renaming Camera01 to Rolli causes Camera01.Target to become Rolli.Target. The target's name must have the extension .Target. Renaming the target object does not rename the camera object.
Clicking the line that connects the camera and its target selects both objects. However, region selection doesn't recognize the link line.
If a target camera is already selected, you add its target to the selection by right-clicking the camera, and then choosing Select Target from the quad menu > Tools1 quadrant. Or you can hold down the CTRL key and click the target to add it to the selection set.