What is aperture?: try it yourself

1. Aperture Scale

Take same photo at f/3.5, f/8, f/16; observe background blur change.

2. Toy Portrait

Photograph a toy with books behind; see how background sharpness changes.

3. Light Test

At same ISO/shutter, compare brightness at f/4 vs. f/11 (note: should be darker).

4. Aperture & Focus

At f/2.8, focus on front eye of stuffed animal; see if back eye is blurred.

5. DIY Bokeh

Place fairy lights in background; shoot wide open (e.g., f/3.5) for soft circles.