I need review camera rotation. The functions about etc. I am looking for it long time bud stil nothing 
A camera is no different than any other game object when it comes to moving and rotating. The Transform component contains an object’s current rotation, as well as most of the functionality related to changing rotation. Perhaps you could describe what it is you’re trying to achieve – and if you haven’t already gone through the various tutorials (especially the scripting guide and those available on the official Unity site) I highly recommend doing so.