Exposure / Learn by doing
Exposure explained simply
What is “Exposure”?
The amount of light recorded by a photograph, shaped mainly by aperture and shutter time. ISO influences the resulting brightness.
- 01Too dark
- 02Useful detail
- 03Too bright
How do you use Exposure practically?
A small exercise
Take a photograph, then make one darker and one brighter by changing a single setting. Look for detail in the brightest and darkest parts.
- Make a starting version and keep it so you can compare fairly.
- Try the change in the exercise. Keep unrelated choices steady where the exercise allows.
- Compare the result at the size your viewer will actually see. Write down what changed and whether it helped.
How does Exposure solve a problem?
Checking exposure helps stop a white shirt becoming a featureless patch or a face disappearing into darkness.
What can go wrong?
The brightest picture is not always the best exposure. Protect important details and choose the mood you want.
How do you turn the idea into a useful solution?
Start with the specific problem in your image or brief, try the exercise, and keep the version that meets that need. If the result is worse, return to the starting version and change one choice at a time.
Quick check: can you explain the three ideas in the diagram?
Too dark → Useful detail → Too bright. Explain how each relates to the exercise. Then compare the starting version with your result and choose the one that meets your brief.
Related video lesson
Exposure basics — Canon
This related lesson gives wider context for the topic. Camera menus and software versions may differ from yours.
Loading the player connects to YouTube. You can also watch the lesson on YouTube.Keep exploring
Try the idea in a studio shoot
Planning a portrait or product session? Use the glossary with our practical shoot guides, then check the studio facilities and send your confirmed requirements with an availability enquiry.