Tuesday, November 18, 2014

Exposure




Aperture:


Shutter Speed:

ISO: 



Exposure: the amount of light that is allowed
  1. Shutter Speed: the amount of time the shutter is open
  2. Aperture: the size of the opening in the lens when the picture is taken
  3. ISO: the measure of a digital cameras sensor's sensitively to light
  • It is the intersection of these three elements that an image's exposure is worked out
  • Most importantly- a change  in one of the elements will impact the others. this means that you can never really isolate just one of the elements alone but always need to have the others in the back of your mind

Aperature:
  • Too Big: Parts of the subject are out of focus
  • Smaller: Subject is in focus and background is out of focus
  • Too Small: Everything is in focus

Shutter Speed:
  • Small Aperture is Slow Shutter Speed
  • Large Aperture is Fast Shutter speed

ISO:
  • Higher ISO may create noise or graininess
  • adjust for more light

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