Friday, February 12, 2016

Lecture On Exposure


02-12-2016


Lecture: Exposure Basics

Exposure triangle: shutter speed. aperture, ISO speed

Aperture: f/stop 
  • smaller=crisper image
  • larger=brighter, softer background
  • changes depth of field
  • narrow settings have higher numbers than wide settings 
  • more blades the better
  • larger aperture reduces the area of sharp focus, smaller aperture expands the area of sharp focus

Shutter Speed: motion blur, opens and closes to let light in
  • bulb mode: allows you to leave shutter open as long as you need
  • fast: 1/1000 sec, slow: 1/10 sec
  • sports mode: freeze the action of fast moving objects with continuous shooting and fast shutter speed

ISO Speed: image noise, sensitivity of camera sensor
  • higher=more noise
  • higher=brighter, lower=darker
  • each change in ISO (100 to 200, 400 to 500, etc.) equals one full stop


White balance: calibrates the camera to the lighting


Panning: standing in one position and following moving target

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