DSLR

  • prime lens: only one focal length
  • zoom lenses: variable focal lengths
  • AF =(autofocus)  MF =(manual focus)
  • high iso value means the sensor will be MORE sensitive to light, meaning it will take less light to get the right exposure
  • more available light = lower iso
  • less available light = higher iso
  • shutter speed: how long the shutter is open
  • fraction: focal length divided by lens diameter
  • smaller number actually represents a larger opening
  • larger aperture, shallower depth of field
  • most cameras have presets have daylight, cloudy, flash, various 
    indoor lights
  • P (Program) – camera sets shutter speed and aperture, but you can choose ISO, AF/MF, white balance
  • Tv (Shutter Speed priority) – you choose shutter speed, camera chooses appropriate aperture
  • Av (Aperture priority) – you choose aperture, camera chooses appropriate shutter speed
  • M (Manual) – you choose EVERYTHING
  • A-Dep (Automatic depth of field) – camera chooses aperture, shutter speed combo to get best DOF
  • the denominator becomes the f-stop number
  • your shutter speed should be double your frame right
  • use the lowest ISO you can to avoid grain/noise
  • dslr cameras are differnt from phone cameras because they have detachable lenses

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