Photography Exposure Triangle Mastery 2

Question 1

You're shooting a waterfall and want silky smooth water. Which shutter speed is most appropriate?

Accepted Answer

1/4s

Answer

A slow shutter speed like 1/4s allows water to blur into a smooth, silky appearance over the exposure duration.

Question 2

At f/2.8 your meter reads a correct exposure. If you switch to f/8, how many stops darker is f/8 compared to f/2.8?

Accepted Answer

3 stops

Answer

f/2.8 → f/4 → f/5.6 → f/8 is three stops, each stop halving the light entering the lens.

Question 3

Which ISO setting will produce the most dynamic range on a modern digital camera?

Accepted Answer

ISO 100

Answer

Base ISO (typically ISO 100) maximizes sensor dynamic range and produces the cleanest image with the most shadow and highlight detail.

Question 4

A photographer uses 1/250s at f/4 and ISO 400. To use f/11 instead while keeping the same brightness, what must change?

Accepted Answer

Use 1/30s shutter speed

Answer

Going from f/4 to f/11 is three stops less light, so shutter speed must slow from 1/250s by three stops to 1/30s to compensate.

Question 5

What is the primary visual effect of using a very wide aperture like f/1.4?

Accepted Answer

Very shallow depth of field

Answer

A wide aperture like f/1.4 produces a very shallow depth of field, keeping the subject sharp while blurring the background.

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