gen-define-long-exposure-technique-and-give-one-short-worked-exa-1a76

Define long-exposure technique and give one short worked example.

# Long-Exposure Technique **Long-exposure photography** is a technique where the camera's shutter remains open for an extended period (typically longer than 1 second), allowing the sensor to capture motion and light over time rather than freezing a single instant. ## Key Effects: - Moving elements appear blurred or create light trails - Stationary objects remain sharp - Low-light scenes become properly exposed - Water appears smooth and silky - Clouds become streaked --- ## Worked Example: Photographing a Waterfall **Scenario:** Shooting a waterfall at midday to create a silky water effect **Settings:** - **Shutter Speed:** 2 seconds (the "long exposure") - **Aperture:** f/16 (small opening to reduce light) - **ISO:** 100 (lowest sensitivity to reduce light) - **Filter:** ND filter (reduces light entering lens) **Result:** - The flowing water blurs into smooth, milky streaks - Surrounding rocks and trees remain sharp and detailed - The 2-second exposure captures multiple "frames" of water movement, averaging them into a soft, ethereal appearance **Without long-exposure:** The same scene at 1/250s would freeze individual water droplets, creating a harsh, chaotic look instead of the smooth effect.