gen-define-the-exposure-triangle-and-give-one-short-worked-examp-beb2

Define the exposure triangle and give one short worked example.

# The Exposure Triangle The exposure triangle describes the three camera settings that control image brightness: 1. **Aperture** (f-stop) - Size of the lens opening; affects depth of field 2. **Shutter Speed** - How long the sensor is exposed; affects motion blur 3. **ISO** - Sensor sensitivity; affects image noise These three work together to achieve proper exposure. Changing one requires adjusting another to maintain the same brightness. ## Worked Example **Scenario:** You're photographing a waterfall and want to create a silky water effect. - **Starting settings:** f/8, 1/250s, ISO 400 (correctly exposed) - **Goal:** Slow shutter to 1/15s for motion blur **Solution:** - Change shutter: 1/250s → 1/15s (4 stops brighter) - To compensate, you must reduce light by 4 stops: - Decrease ISO: 400 → 100 (2 stops darker) - Narrow aperture: f/8 → f/16 (2 stops darker) - **New settings:** f/16, 1/15s, ISO 100 (same exposure, silky water effect achieved) The image brightness remains the same, but you've achieved your creative goal.