Objective narrators report from a perspective outside the minds of all characters.
Omniscient, that is, "all knowing" narrators have access to the thoughts and feelings of one or more characters. They may shift the point of view from one character's consciousness to another's in the course of a work of fiction.
Seymour Chatman, a critic who has written extensively about point of view, refers to the process by which a third-person omniscient narrator allows us to perceive thoughts and view events from inside a character's mind as using a narrative "filter." Authors use various techniques for taking us inside a consciousness or showing us how things are viewed through that character's filter in a story with third-person narration.
Methods for Constructing Narrative Filters
1. Report: Third-person narrator reports on character's thoughts.
ex. "Smith felt that he was wrong to have done that."
2. Quotation
a. Direct tagged quotation: third-person narrator can quote the character's thoughts directly, inside quotation marks and using "tag" phrases like "he said" or "she thought."
ex. "I was wrong to have done that," Smith thought.
b. Indirect tagged quotation: third-person narrator shifts the character's thoughts and the tag phrases into 3rd-person pronouns and usually drops quotation marks.
ex. He was wrong to have done that, he thought.
c. Indirect untagged quotation (also known as free quotation, free indirect style, indirect discourse, or narrated monolog): the quotation is indirect because the pronouns are 3rd person and "free" because there are no tags like "he said."
ex. He was wrong to have done that.
3. Stream of Consciousness: this technique attempts to duplicate the flow of thoughts and sense impressions as they occur in a character's mind. Often ordinary grammar and punctuation break down in the effort to capture the flux of perceptions in that character's consciousness.
Note that when converting a direct quotation into an indirect one, the tense of the verb normally shifts into past tense:
ex. (direct quotation, either tagged or untagged.)
I am late [he thought].
I was late [he thought].
I will be late [he thought].
Am I late? [he wondered].
ex. (indirect untagged quotation)
He was late.
He had been late.
He would be late.
Was he late?
Examples:
Obtrusive Narrators: Anthony Trollope and Ambrose Bierce
Unreliable First-Person Narrator: Edgar Allan Poe
Second-Person Narrator: Charles Johnson
Stream of Consciousness: William Faulkner
Variations in filter:
Austen, from Emma; Porter, "The Jilting of Granny Weatherall"