[ GLOSSARY DEFINITION ] Camera

exposure time

How long a camera's sensor collects light for one photo.

Also known as: shutter time

Full Definition & Technical Explanation

Exposure time is how long the sensor gathers light, measured in fractions of a second. Longer times brighten dim scenes but risk motion blur.

See shutter speed.

Where exposure time Matters

Frequently Asked Questions

What is exposure time?

How long a camera's sensor collects light for one photo.

What terms are related to exposure time?

Related Camera terms include moiré, blur.

Related Technical Terms

moiré
A wavy interference pattern caused by fine repeating details. Camera
blur
A loss of sharpness, either unwanted or used creatively for background bokeh. Camera
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