Exposure Triangle

Master the relationship between ISO, aperture, and shutter speed

Exposure Triangle Simulator

Adjust any two settings to see how the third must change to maintain the same exposure. Understanding this balance is fundamental to creative photography.

Current Exposure

Click calculate to see equivalent exposures

Understanding the Triangle

The exposure triangle represents the three pillars of exposure: ISO, Aperture, and Shutter Speed. Change one, and you must compensate with another to maintain the same exposure.

ISO

Sensor sensitivity. Higher = brighter but more grain.

Aperture

Lens opening size. Affects depth of field and light.

Shutter

Duration of light. Affects motion blur and light.