Lenses & focus / Learn by doing
Lens Distortion explained simply
What is “Lens Distortion”?
A lens-related change that makes straight lines appear curved or changes their geometry in the image.
- 01Straight grid
- 02Curved image lines
- 03Compare correction
How do you use Lens Distortion practically?
A small exercise
Photograph a grid square-on. Look for lines bowing out or in, then compare a lens-profile correction.
- 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 Lens Distortion solve a problem?
It helps identify why a room or product box does not look geometrically straight.
What can go wrong?
Distortion is different from perspective caused by camera position or tilt. Corrections can crop the edges.
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?
Straight grid → Curved image lines → Compare correction. 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
Lens 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.