← Glossary
Camera & Exposure
Exposure Triangle
The three settings that control how bright your image is: aperture (how much light the lens lets in), shutter speed (how long the sensor drinks it), and ISO (how much the signal gets amplified). Change one, and you compensate with the others.
Phones juggle this automatically; understanding it is what lets you override the automation when it’s wrong — which indoors, near windows, is often.
Why it matters for your listings
Interiors are an exposure knife-fight between dark corners and blown windows. Knowing the triangle is how you win it on purpose instead of by luck.
Related terms