Metering Patterns

How much of the frame the camera uses to judge exposure

Matrix / Evaluative

Analyzes the entire frame in zones. Uses algorithms, focus point, and often subject detection.

Best for: General shooting, landscapes, even lighting
Canon: Evaluative · Nikon: Matrix · Sony: Multi. Default for most situations.

Center-Weighted

Meters the whole scene but weights the center heavily. Classic film-era pattern.

Best for: Center-framed portraits, backlit subjects
Predictable when the subject sits in the middle of the frame.

Spot Metering

Meters a tiny area (typically 1–5% of frame), usually tied to the active focus point.

Best for: High contrast, stage performers, moon, backlit faces
Meter what matters. Lock exposure (AE-L), recompose, shoot.

Highlight-Weighted

Biases exposure to preserve bright areas and reduce clipped highlights.

Best for: Spotlit performers, white wedding dresses, snow
Nikon feature. Use when blown highlights would ruin the shot.

Exposure Compensation

Override the meter when the scene fools it

-3 -2 -1 0 +1 +2 +3
Darker Meter reading Brighter

Exposure compensation shifts brightness without changing your manual settings. Works in P, Av/A, and Tv/S modes.

  • Bright scenes (snow, beach, sky): Add +1 to +2 EV. Meters underexpose white.
  • Dark scenes (night, black subject): Subtract -1 to -2 EV. Meters overexpose dark tones.
  • Backlit subjects: Add +1 to +2 EV after spot metering the face, or use center-weighted.

Which Metering When

Match the scene. Dial EV comp when the meter misses.

Scenario Metering EV Comp Notes
General / landscape Default Matrix 0 Even lighting. Check histogram for bright skies.
Centered portrait Center-weighted 0 to +1 Subject in middle of frame. Add +EV if face looks dark.
Backlit subject Spot on face +1 to +2 Meter face, AE-L, recompose. Or center-weighted + compensation.
Snow / beach / white sand Matrix +1 to +2 Bright scenes read as overexposed to the meter. Snow should sit right on histogram.
Concert / stage Spot on performer 0 to -0.5 Dark background fools matrix. Spot the lit face or costume.
Silhouette Spot on sky -2 to -3 Expose for the bright background. Subject goes black.
Wedding dress / spotlights Highlight-weighted 0 Protects highlights. Nikon cameras. Matrix + negative comp also works.
Night street / dark interior Spot or Matrix -1 to -2 Meter overexposes large dark areas. Spot a mid-tone if available.
The rule

Meters target middle gray. Bright scenes need +EV. Dark scenes need -EV. High contrast: spot meter, lock, recompose.

Metering in the Field

Set pattern, read the meter, compensate, verify

  1. Choose metering mode

    Matrix for most scenes. Spot when contrast is extreme. Use the lookup table above for tricky light.

  2. Meter and lock if needed

    Half-press shutter in auto modes. For spot: place point on target, press AE-L (or half-press in Manual to read the scale only).

    Spot: AE-L Backlit: +1 to +2 EV Snow: +1 to +2 EV
  3. Check histogram and blinkies

    Review after test shot. Clipped highlights on skin or white dress: dial down. Crushed shadows on face: dial up.

  4. Manual mode note

    Metering still shows the scale in the viewfinder but does not change settings. Use it as a starting reference, then set aperture, shutter, and ISO yourself.

Cheat Sheet

Quick answers for the field

Even landscape? Matrix, 0 EV. Watch the sky in histogram.
Backlit portrait? Spot on face + AE-L, or +1 to +2 EV
Snow looks gray? Matrix +1 to +2 EV. Spot a mid-tone and recompose also works.
Stage / concert? Spot on performer. Matrix will underexpose the face.
Silhouette? Spot on bright sky, -2 to -3 EV
Night street? Matrix -1 to -2 EV, or spot a mid-tone reference
Blinking highlights? Dial -0.3 to -1 EV, or switch to highlight-weighted
Manual mode? Meter shows in viewfinder only. You set all three exposure values.

Common Questions

Quick answers on matrix vs spot metering, exposure compensation, and tricky lighting.

What is evaluative (matrix) metering?

The camera divides the frame into zones, weighs them using algorithms and often subject detection, and sets exposure for the whole scene. Default for most shooting.

When should I use spot metering?

High-contrast scenes where one small area must be exposed correctly: backlit faces, stage performers, the moon. Meter the target, lock exposure (AE-L), recompose, shoot.

What is exposure compensation?

A dial that shifts exposure brighter or darker from the meter reading without changing aperture, shutter, or ISO manually. Use +EV for bright scenes the meter underexposes (snow), -EV for dark scenes it overexposes.

Why are my snow photos gray?

Meters aim for middle gray. Bright snow reads as overexposed, so the camera darkens the scene. Add +1 to +2 EV compensation, or spot meter a mid-tone and recompose.

Keep Learning

Exposure, portraits, and high-contrast scenes