A light meter measures the intensity of light and translates that data into numerical values for aperture, shutter speed, and ISO. While convenient, in-camera meters can be fooled by bright snow or dark backdrops.
Why Your White Wall Reading Makes the Meter Underexpose to Gray
Treat this scale as a balance beam rather than a strict rule, using it as a starting point for creative deviation. Incident metering measures the light falling on the subject, using a dome-shaped sensor that faces the camera.
Mastering this tool ensures your images match your creative vision, from deep shadows to bright highlights. Look through the viewfinder or at the LCD screen to see a scale with a zero in the center.
Why Your White Wall Reading Makes the Meter Underexpose to Gray
Whether you are shooting film or digital, understanding how to interpret the readings from these devices allows you to take control of exposure. If you meter off a white wall, the meter will underexpose to make it look gray.
More About How to read a light meter
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More perspective on How to read a light meter can make the topic easier to follow by connecting earlier points with a few simple takeaways.
