After Effects: Adjusting Aperture for background blur

Demo summary
Demonstrates increasing the Aperture value in After Effects to create a shallow depth of field and blur the foreground subject.
Step-by-step
- Ensure the focus distance is set to reach the background object
- Slowly increase the Aperture value
Watch out for
- The focus distance must be correctly aligned with the background object before adjusting aperture to blur the foreground
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