DSLR Cameras and Lenses PowerPoint Synopsis

  • DSLR stands for “Digital Single Lens Reflex”
  • Digital cameras that resemble 35mm film cameras
  • Mirror system inside lets you preview through the viewfinder the same image that is being captured on film/sensor
  • DSLRs are different from “point and shoot” cameras or phones because of detachable lenses
  • Prime vs Zoom lenses
  • Prime lens have only one focal length
  • Zoom lenses have variable focal lengths
  • Kit lens: A basic lens that comes with a camera body in a “kit”
  • Many people use telephoto lenses when shooting distant landscapes to compress perspective.
  • AF = Autofocus
  • MF = Manual focus
  • Zoom and focus are different things
  • More available light = lower ISO
  • Less available light = higher ISO
  • Use the lowest ISO you can to avoid grain/noise
  • Shutter speed: how long the shutter is open
  • Your situation determines the shutter speed
  • Aperture, AKA F-stop
  • Fraction Focal length divided by lens diameter
  • The denominator becomes the f-stop number​ and the smaller number actually represents a larger opening
  • “Fast” lens has a bigger maximum aperture
  • Larger aperture, shallower depth of field
  • Longer lenses APPEAR to have a shallower depth of field because they are magnifying the subject, which flattens the perspective and makes our eyes think the DOF is shallower
  •  White balance is a camera setting that adjusts how colors look
  • Setting the “correct” white balance setting tells the camera how to make your whites and grays neutral, without any color tint

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