Sensory decoding of image by spectator — not objective reality, but what editing, score, focus trigger neurologically. Montage acts faster than location.
In editing, you quickly realize: the viewer doesn't see the film you shot. They see the film their brain constructs from your cuts. This is the core of perception in the cinematic sense — not the objective sequence of images, but the sensory decoding that happens in the black box between the screen and the skull.
Consider a simple sequence of cuts: a close-up of a face, cut to an empty street, cut back. The viewer feels loneliness — even though both images are neutral. The montage has guided perception. Or differently: two identical takes — one with violins off-screen, one with ambient sound — elicit completely different emotional responses. The cut itself remains the same. Perception shifts radically due to sound and music.
The tricky part is: focus and exposure have less direct impact than editing. A perfectly lit face in a wide shot is optically objective, but cognitively passive — the viewer accepts it without actively decoding. A cut between two contrasting shots forces the brain to make a connection. This is aggressive perceptual design. That's why an Erich von Stroheim shot (long, static takes) works differently than a Kuleshov effect (short, associative cuts) — not because the images are different, but because the recipient has to work differently.
On set, the dolly shot moves across your lens at 24fps — harmless, even realistic. In editing, you cut this shot against a jump cut, and suddenly the same movement appears disturbing, unnatural. The viewer's perception depends on tempo, rhythm, and context, not the source. An extreme wide-angle lens makes a figure small and lost — or dominant and towering, depending on what you show before and after. The image is not neutral. Your editing shapes perception.
In practice, this means: don't expect objective image perception. Expect perception as a constructed event. Editing, music, light, and sound don't work in isolation — they merge into a single cognitive experience. A young DP who believes perfect lighting works on its own misunderstands the principle. The lighting only works within the dramatic context. Perception is not depiction — it is manipulation through presentation.