The camera is your Audience of One. It will almost certainly be more expensive than you, and probably more temperamental. Loving care and attention is lavished on it and quite rightly, too, for without the camera there is no show.
A camera can pan, tilt, or zoom. It can be put on tracks to dolly in and out or follow along; it can crane up and down. In a multicamera studio, it can do most of these most of the time. With single camera work, especially on location, it can do all of these-at a time price. I can easily explain the technical terms.
rotating the camera through an arc; "pan left; pan right"; named after the long shots in the early movie days that slowly looked round the scenery: a panoramic view-hence a pan.
tilting the camera to look up or down-just what you would expect.
changing the size of shot by making it tighter (or looser) in a continuous way; it works by using a complex lens that can continuously change its focal length.