In this tutorial, we learn how to rotate and revolve cameras in Maya. First, go to create primitives on the menu at the top. Next, create a camera and pull it out onto the circle. Now, click the camera and then the circle, then hit the 'p' key on the keyboard. Now, you can rotate your circle around and it will rotate on the y axis. To set this, click on 50, then type in 360 on the 'y axis' space. After this, hit 's' an you will have a key frame. You can change the settings as you prefer, then save when you are finished.