Patricia Wrede

Camera-eye is more distancing than tight third, because you don’t get to see individual characters’ thoughts and feelings, but in compensation, the scope is greater—the author can show anything that is happening in the area, whether the main character notices it or not, and can point out that the main character isn’t noticing it.

Camera-eye often gets used in multiple-viewpoint novels where the writer wants to give the reader a taste of what the villain is doing without actually going into the villain’s head as a tight third POV character (and thus giving away the villain’s whole plot).

The villain’s scenes get written in camera-eye, while all the hero’s scenes are in tight third.

Omniscient:

In omniscient viewpoint, the narrator is an invisible character who knows everything that has ever happened or will ever happen and everything that anyone is thinking or feeling, and who can report as much or as little of this as seems appropriate.