Beginning Digital Photography
Dorothy Dean
Exposure Triangle â—?
Aperture+Shutter Speed+ISO= Exposure triangle
Shutter Speed ●
The speed the shutter opens and closes
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Expressed in fractions of a second ●
1/250th, 1/60th, etc
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Slow shutter speeds allow for more blur
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Fast shutter speeds freeze motion
Aperture ●
Size of the opening in the lens
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Expressed in numbers ●
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f2.2, f5.6, etc
Smaller number means larger opening, larger number means smaller opening Large apertures make bokeh, shallow depth of field Small apertures give deeper depth of field
Depth of field ●
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The amount of the image that is sharp in your image Always parallel to the film plane Controlled by size of aperture and amount of zoom
ISO ●
Term hold over from film days
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Describes the sensitivity of the sensor
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Expressed in 100's ●
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100, 200, 400, 800, etc
High ISO's create “noise” in the image, so keep your ISO as low as possible
Exposure Triangle â—?
Aperture+Shutter Speed+ISO= Exposure triangle
Choosing Metering ●
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Center weighted- takes the average value of the center of the image Spot- takes the value of a small spot Matrix- averages the value of the entire frame
Camera Settings
Camera Operations Pull out your cameras! This one's hands on.
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