← Photography Fundamentals

Lesson 1 of 3 · 9 min

The exposure triangle

Aperture, shutter speed and ISO together decide how bright a photo is.

Wide aperture blurs backgrounds; fast shutter freezes motion; low ISO keeps images clean.

Practice

Take the same photo three times, changing one setting each time, and compare.

Quiz

+50 pts
1. The triangle is aperture, shutter and…
2. Freezing motion needs…

Optional resources

Your lesson toolkit

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Adobe Lightroom

Explore exposure and color correction on your photos.

Paid subscription with trial; free mobile app has basic tools.

Explore tool