If you are photographing a scene with predominantly white snow, the meter will try to darken it to gray, resulting in dull, gray snow. How Light Meters Interpret the World At its core, a light meter assumes that the world reflects 18% of the light that hits it.
Night Photography Metering: Mastering Light Meters in Low Light
In Aperture Priority, you set the aperture, and the camera meters and selects the shutter speed. When you use your camera’s through-the-lens (TTL) metering, the device calculates the necessary shutter speed and aperture to render that average scene as 18% gray.
Creative Exposure Compensation Even with advanced metering systems, photographers must often override the camera’s suggestion. This default mode, often called Matrix or Evaluative metering, works well for high-contrast scenes that average out to middle gray.
Night Photography Metering: Mastering Light Meters in Low Light
Experienced photographers learn to interpret these differences to achieve the desired artistic outcome. Incident metering, done with a handheld meter facing the camera, measures the light falling on the subject, which is unaffected by the subject's color.
More About Exposure metering
Looking at Exposure metering from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on Exposure metering can make the topic easier to follow by connecting earlier points with a few simple takeaways.
