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16 Cards in this Set
- Front
- Back
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What is Focus?
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Determines what part of the scene is sharply focused, and what is not.
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Aperture
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The two effects of changing the aperture are to change the amount of light reaching the film (exposure) and to change the depth of field (or depth of focus) in the image
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Small apertures (large numbers) provide
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MORE depth of field
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Large apertures (small numbers) provide
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LESS depth of field
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Shutter speed
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The two effects of changing the shutter speed are to change the amount of light reaching the film (exposure, by varying HOW LONG the light falls on the film) and to change the way that moving objects are represented:
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Long (or slow) shutter speeds (small numbers) show motion as a
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blur, because the object moves while the shutter is open.
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Short (or fast) shutter speeds (large numbers)
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freeze” motion, because the object moves very little during the brief time the shutter is open.
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What are the numbers on the aperture scale called?
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f-stops
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f-stops are
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the denominators of fractions of the focal length of the lens
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what is the standard series of f-stops
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f1, f1.4, f2, f2.8, f4, f5.6, f8, f11, f16, f22
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If you change the shutter speed to a faster setting (for example: change from 1/60 second to 1/125 second), then
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then you must open the aperture by one stop to keep the same total amount of light on the film (for example, open from f11 to f8).
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if you close down the aperture by one stop (for example: close from f4 to f5.6) then you must go to a
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longer (slower) shutter speed to keep an equivalent exposure (for example, change from 1/125 second to 1/60 second).
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a. All traditional photographic processes are based on the sensitivity of ____________ to light
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silver halides
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what happens when you expose film to light?
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some silver halides are exposed and some are not this is called a latent image
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fixing
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removes the silver halides that were NOT exposed to light
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HCA
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neutralizes the fixer on the film so that you can develop faster
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