I am writing a book that's supposed to be third person omniscient, but I find myself sometimes writing third person limited a lot of the time. That is, I'll often frame scenes in a way that's affected and limited by certain characters' perspectives. I do this for dramatic effect, and because of its informational value. Instead of blandly explaining that "x" character entered the room menacingly, I'll describe the menacing entrance of a "stranger". To the omniscient narrator, no-one is a stranger. Writing the man instead of John Smith kind of detracts from the omniscience, I feel. Yet for this story, I just need the freedom of having an omniscient narrator unbound by any one perspective. Perhaps my question is based on a false premise? Is perspective-hopping in-line with third person omniscient, and is it okay in an of itself?
What I'm afraid of is that this'll just confuse the heck out of people, and break their immersion. So, how do I balance this?