Maya: 4 Ways to Animate a Camera 

When it comes to camera animation, the first thing you need is a new camera. Costs nothing but a click or two.
The four ways to animate the thing involve keyframes, motion curves, aims and camera cuts.
For a straight forward tutorial about keyframe camera animation, see this tutorial: • Maya: Camera Animation...
We don't talk about camera settings like focal length, depth of field and image perspective here. An in depth tutorial about motion paths and camera aims is here: • Maya: Camera, Aim and ...