Quick Quiz!
No grades. No score. Tap an answer and see what happens.
True or false: every scene has one correct exposure.
YUP!
Which opening lets in the most light?
YUP!
You want the flower sharp and the background soft and blurry. Which do you reach for?
YUP!
Not quite!
A big opening gives a thin slice of sharpness. That’s f/2.8.
You wanted silky water and got frozen droplets. What do you change?
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Not quite!
A slower shutter. Leave the window open longer and the water has time to move.
Look again: Slow Shutter or Fast Shutter: What's the Difference? →
True or false: turning up the ISO lets more light into the camera.
YUP!
Not quite!
ISO is the volume knob. It turns up the light you already caught, and the noise comes up with it.
You open the aperture one stop and want the photo just as bright as before. The shutter needs to be…
YUP!
Not quite!
Twice as fast. Bigger opening, less time to fill the cup.
Tripod, nothing moving, and the photo came out darker than you wanted. What keeps it cleanest?
YUP!
Not quite!
The longer shutter. More real light and no added noise. f/22 makes it darker still.
What do you pay for cranking the ISO way up?
YUP!
Congrats!
You finished Understanding Exposure.
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