An open kitchen is one of the least cooperative environments you can point a camera at. The light source is whatever the restaurant installed for cooks, not photographers, and it rarely agrees with itself from one fixture to the next. In this frame the copper hood throws a warm, almost orange glow across the top third, while the stainless prep line below sits under a cooler, harder white. Shooting straight into that split without a plan produces a mess of clashing color temperatures.

Evaluative metering is correct most of the time. It analyzes the scene, weights the meter reading toward the focus point, and produces an exposure that protects the most information across the widest area of the frame. In scenes with even illumination and a subject that occupies a significant portion of the frame, it works without adjustment. In scenes where the subject is lit differently from the background — a face in open shade against a bright street, a person near a window with an unlit room behind them — evaluative metering averages toward a wrong answer.