Camera controls - Exposure Triangle
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Transcript of Camera controls - Exposure Triangle
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Photography - Technical
Camera Controls
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History of Photography
• Ted video
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MAKING BEAUTIFUL PHOTOGRAPHS
• National Geographic:http://video.nationalgeographic.com/
video/player/photography/photographers/simply-beautiful.html
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HOW DOES LIGHT TRAVEL THROUGH A CAMERA?
A
A
B
C
C
B
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CAMERA OBSCURA
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QUIZ
1. What did artists use pre-1800’s to draw/trace with?
2. What does light do to an image when it travels through a camera?
3. In digital camera’s what reverses the image?
4. In digital camera’s what does the photograph produce itself onto?
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EXPOSURE TRIANGLE
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EXPOSURE TRIANGLE QUIZ
1. Which component controls the grain?
2. Which component controls the blur?
3. Which component controls the Depth of Field?
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ISO ISO measures the sensitivity of the image
sensor.
ISO 100 ISO 3200
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ISO AND NOISE
• The lower the number (eg. 100) the finer/smoother the grain.
• Meaning that the image will be higher quality.
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ISO AND LIGHT The higher the number (eg 1600) the more sensitive your camera is
to light.
Meaning more light is let onto the image but the quality is poor.
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to control the amount of time during which the camera is exposed to light.
'faster' shutter speeds decrease the amount of light and freeze the image.
‘slower’ shutter speeds increase the amount of light and can create movement in the image.
SHUTTER SPEED
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Mitsuaki Iwago
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Stephen Dalton
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Linda Connor
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Bragaglia brothers
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Karl de Keyzer
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QUIZ
1. Give a numerical example of a fast shutter speed
2. Give a numerical example of a slow shutter speed
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to control the amount of light entering the lens.
• has an effect on focus and depth of field
APERTURE
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In the camera lens
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Small number = shallow depth of field.
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When shooting a landscape, get as much of the photograph in sharp focus as possible (f11 to f22).
In a portrait, shallower dof (f2.8 - 8) will isolate your subject from distracting backgrounds
Shooting
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Keith Arnatt
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Erna Lendvai-Dircksen
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Cornell Capa
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QUIZ
1. What F stop would you typically use when you shoot portraits?
2. Give a numerical example of an F stop that creates a shallow depth of field.
3. What could you photograph at F22?
4. If you had F22 would more or less light come through the camera than F5.6?