How to Stop Rotation

I made the First Person Controller 3rd person by dragging the camera up because I'm not a fan of the original Third Person Controller. Now, when in game, you can look to the sky way too much and lose sight of the character. Same thing with looking down. Is there a way to set it so when it reaches a certain of rotation upwards it stops, same with downwards.

 

You're going to need to use the Mathf.clamp function to clamp the value.

http://docs.unity3d.com/ScriptReference/Mathf.Clamp.html