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Published byEustacia Ball Modified over 9 years ago
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Controlling light to achieve
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exposure is the quantity of light reaching a photographic film, as determined by shutter speed and lens aperture.
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With a light meter! Light meters quantify light.
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The light meter takes into account the ISO of the film and reports back with a suggested Shutter Speed and Aperture setting. Use the meter reading as a guideline Make changes based on the subject and the desired effect.
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ISO Shutter Speed Lens Opening
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ISO is the speed of the film. Film speed indicates the relative sensitivity to light. We use ISO 400 black and white film
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Light meters see light and dark areas and average the brightness to give you the correct exposure. Use a 18% Gray card held up in the area you want to photograph. The light meter off the gray card will give you an accurate exposure reading.
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Control your image with proper use of camera settings You can get different effects and a correct exposure by knowing your camera settings
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The camera sets shutter speed and aperture based on meter reading This is a guideline to adjust from
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Shutter –Priority AE Mode You set the shutter speed the camera selects the f- stop, or Aperture
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Lets in less light Can freeze action 1/250 or faster
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Lets in more light Show flowing movement Caution image may be blurry! 1/60 of a second or less
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You select the F-Stop, the Aperture, the camera selects the Shutter Speed
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The bigger the number the smaller the Aperture. The smaller the Aperture, the less light into the camera. The smaller the Aperture, the greater the depth of field.
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You select the F-Stop, the Aperture, the camera selects the Shutter Speed The Smaller the number the bigger the Aperture. The bigger the Aperture, the more light into the camera. The bigger the Aperture, less depth of field.
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Small aperture Less light Deep depth of field Large aperture More light Shallow depth of field
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Small Aperture less light Deep depth of field
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Large Aperture Lots of light Shallow depth of field
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Get a suggested correct settings Decide what effect you want for the image Make adjustments to the exposure settings
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Freeze motion with fast shutter Blur motion with slow shutter Deep depth with a small aperture Shallow depth with a large aperture
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