Exposure Wrap-Up: What Did You Just Learn?

Look What You Know Now!

Got it!apertureshutter speedISO

A few drawings ago, all those dials were a mystery. Not anymore. Here’s the whole thing in one place.

The Short Version

The big idea
Darker or lighter can both be right. YOU get to decide.What Is Exposure? → Three controls, one balance: aperture, shutter speed and ISO.What Are the Three Exposure Settings? →
Aperture
Small number = big hole. Big number = small hole.What Does Aperture Do? → Bigger opening? Less time to fill.How Aperture Works: The Faucet and the Cup → Big opening = less in focus. Small opening = more in focus.What Is Depth of Field? →
Shutter speed
Shutter speed is how long the curtains stay open.How Does a Camera Shutter Work? → Slow lets moving things blur. Fast freezes them.Slow Shutter or Fast Shutter: What's the Difference? →
ISO
Window wide open, curtains open as long as you dare, and still too dark? Reach for ISO.What Do You Do When There's Not Enough Light? → ISO doesn’t let in more light. It turns up the light you already caught.What Does ISO Do? → Brighter picture, more noise. Nothing is free.What's the Catch With High ISO? →

Want to Check Yourself?

Eight quick questions. No grades, no score. Totally optional.

Scroll to Top