Different lenses create different psychological effects. A wide-angle lens distorts faces at close range, creating unease. A telephoto lens compresses space, making characters feel trapped. The choice of lens is a decision about how the audience should feel about proximity.

Deep focus (everything sharp from foreground to background) lets the audience look wherever they want. Shallow focus (only one plane sharp) forces attention where the filmmaker wants it. This is control disguised as naturalism — the audience feels free while being directed.