Exposure Triangle: Aperture, Shutter Speed, ISO
Q. How does changing the aperture from f/8 to f/4 affect exposure?
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A.
It decreases exposure
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B.
It increases exposure
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C.
It has no effect on exposure
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D.
It doubles the exposure time
Solution
Changing the aperture from f/8 to f/4 increases exposure by allowing more light to enter the camera.
Correct Answer: B — It increases exposure
Q. If you increase the aperture size (lower f-stop number), what happens to the depth of field?
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A.
It increases
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B.
It decreases
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C.
It remains the same
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D.
It becomes infinite
Solution
Increasing the aperture size (lower f-stop number) decreases the depth of field, resulting in a blurrier background.
Correct Answer: B — It decreases
Q. What does the aperture setting control in photography?
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A.
The amount of light entering the camera
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B.
The duration of light exposure
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C.
The sensitivity of the camera sensor
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D.
The focal length of the lens
Solution
Aperture controls the amount of light that enters the camera, affecting exposure and depth of field.
Correct Answer: A — The amount of light entering the camera
Q. What effect does a higher ISO setting have on an image?
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A.
Increases image brightness without affecting noise
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B.
Decreases image brightness and increases noise
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C.
Increases image brightness and increases noise
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D.
Has no effect on brightness or noise
Solution
A higher ISO setting increases image brightness but also increases noise, leading to grainier images.
Correct Answer: C — Increases image brightness and increases noise
Q. What is ISO in photography?
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A.
The measure of the lens focal length
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B.
The sensitivity of the camera sensor to light
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C.
The speed of the shutter mechanism
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D.
The size of the aperture opening
Solution
ISO measures the sensitivity of the camera sensor to light, affecting exposure and noise levels.
Correct Answer: B — The sensitivity of the camera sensor to light
Q. What is the effect of using a low ISO setting in bright conditions?
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A.
Increases noise
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B.
Decreases image quality
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C.
Reduces the risk of overexposure
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D.
Increases depth of field
Solution
Using a low ISO setting in bright conditions reduces the risk of overexposure and maintains image quality.
Correct Answer: C — Reduces the risk of overexposure
Q. What is the primary purpose of using a fast shutter speed?
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A.
To capture motion blur
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B.
To freeze fast-moving subjects
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C.
To increase depth of field
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D.
To reduce noise in low light
Solution
A fast shutter speed is used to freeze fast-moving subjects, preventing motion blur.
Correct Answer: B — To freeze fast-moving subjects
Q. What is the relationship between shutter speed and motion in photography?
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A.
Faster shutter speeds capture more motion blur
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B.
Slower shutter speeds freeze motion
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C.
Faster shutter speeds freeze motion
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D.
Shutter speed has no effect on motion
Solution
Faster shutter speeds freeze motion, while slower speeds can create motion blur.
Correct Answer: C — Faster shutter speeds freeze motion
Q. Which of the following combinations would result in the same exposure?
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A.
f/2.8, 1/500 sec, ISO 100
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B.
f/4, 1/250 sec, ISO 200
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C.
f/5.6, 1/125 sec, ISO 400
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D.
All of the above
Solution
All combinations can achieve the same exposure by balancing aperture, shutter speed, and ISO.
Correct Answer: D — All of the above
Q. Which shutter speed would allow the most light to hit the sensor?
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A.
1/1000 sec
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B.
1/250 sec
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C.
1/60 sec
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D.
1 sec
Solution
A shutter speed of 1 second allows the most light to hit the sensor compared to faster speeds.
Correct Answer: D — 1 sec
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