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VIDEO PRODUCTION :: LIGHTING



What you need to Know About Lighting:
LIGHTING
Lighting can be analyzed by the following four characteristics

1

QUALITY (relative focus of the illumination)
HARD
  • Directed, focused light source
  • Parallel light rays causing clearly defined shadows, sharp edges, crisp textures 
  • Created by sun light at noon or by a light source which is lensed, like as Fresnel light (spot light).
SOFT
  • Diffused, unfocused light source
  • Creates softer shadows, blurred contours and textures
  • Created by overcast sky or light source which is softened by a diffusion filter, gel, or scrim.

     
     

    2

    DIRECTION (path from source to object lit)
      • frontal - eliminates shadows, flat, 
      • sidelight - sculpts features of subject
      • back light - from behind the subject - 
        • when used alone, it creates silhouettes
        • when used in combination with other (frontal)  lights, creates a contour around subject (rim of light)
      • under lighting - distorts, horror, fireplace...
      • top light - glamour (accentuates cheekbones) or darkened noir (as in single bulb hanging above the detective)
       
    3
    SOURCE (From what source does the light come from? What is the lighting contrast ratio?)
    • High Key
      • lighting set up that is uniformly bright 
      • It comes from many sources to create lighting which is flat - not a lot of contrast between bright spots and shadows
      • usually used for comedies, light dramas, adventure films.

      • daylight, indoor at a supermarket, the classroom, most common studio lighting set up
    • Low Key
      • lighting which has high contrast ratios
      • It comes from realtively few soursces to create a set up that is mostly dark with some clearly defined bright areas
      • Often with hard lighting - but NOT ALWAYS
      • aka "chiaroscuro" - dark darks and bright spots of light.
      • film noir, mystery, studio work in Zed TV on CBC

     
      4
      COLOR
      Different colors can create different emotions, moods, and illusions.

    TYPICAL LIGHTING SET UP
    (3-point lighting)

    FOLLOW THESE LINKS FOR EXTERNAL TUTORIALS ON 3-Point Lighting, Key Lights,

    Fill Light, Back Light, and Background Light

  • KEY LIGHT:
  • The primary light
  • the dominant source of illumination. 
  • brightest
  • In set-up, it's usu. 45 degree angle to camera
  • FILL LIGHT:
  • less intense than key
  • fills in, softening or eliminating shadows - i.e. lessens contrasts.
  • usually next to the camera or at 45 degree ablge to camera opposite the location of the key light.
  • Fill could be provided by a bounce card or reflector to reflect a soft light on subject.
  • BACK LIGHT:
  • comes from behind and above the subject
  • usually opposite the key light.
  • used in studio productions
  • when used with key and fill, it creates a rim around subject (glamorous)
  • creates spatial relief - separates subject from background.
  • creates a sense of depth
  • BACKGROUND LIGHTS or SET LIGHTS:
  • used to illuminate the set or the background (walls, furniture, etc)
  • SPOT HIGHLIGHTS or EFFECTS LIGHTS
  • extra light that accents a portion of the setting with intense or patterned lights for dramatic effects
  • blinds on a wall, e.g.
  • PRACTICALS
  • any light that is already in the picture.
  • Although they can provide light to illuminate the scene, they do not necessarily have to, they're often used to just give the illusion of light. 
  • candles, a small desk lamp, matches. etc...
Disadvantage of 3 point  set up is that you have to rearrange the lights everytime you change camera position of subject(s) position.

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