The Exposure Triangle

An interactive lesson on how light becomes a photograph

Think of your camera's sensor as a bucket collecting rain.

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Camera Iris
How wide is the opening?
Capture Duration
How long is it left out?
Sensor Sensitivity
How big is the bucket?

Overfill the bucket = too bright. Underfill = too dark.
Three controls, one light budget. Let's learn each one.

Blake Vente (rv2459) — COMSW4170