Chapter 8 Light, Color, Lighting. Key Terms Key Terms Light Light Shadows Shadows Color Color...

Click here to load reader

  • date post

    31-Mar-2015
  • Category

    Documents

  • view

    220
  • download

    2

Embed Size (px)

Transcript of Chapter 8 Light, Color, Lighting. Key Terms Key Terms Light Light Shadows Shadows Color Color...

  • Slide 1

Chapter 8 Light, Color, Lighting Slide 2 Key Terms Key Terms Light Light Shadows Shadows Color Color Lighting Instruments Lighting Instruments Lighting Techniques Lighting Techniques Slide 3 Light, Color, Lighting Key Terms Key Terms Page 116 Page 116 25 Terms 25 Terms Read, Study Read, Study Slide 4 Light, Color, Lighting Types of Light Types of Light Directional Directional Diffused Diffused Slide 5 Light, Color, Lighting Directional Light Directional Light Direct Direct Precise Precise Hard Shadows Hard Shadows Used to light specific areas Used to light specific areas Examples Sun, Flashlight, Car Headlights, Studio spotlights Examples Sun, Flashlight, Car Headlights, Studio spotlights Slide 6 Light, Color, Lighting Diffused Light Diffused Light General General Not Precise Not Precise Spreads Spreads Seems to come from all directions Seems to come from all directions Used to light large areas Used to light large areas Examples Fluorescent lights, Classroom, Studio Fill lights (large round lights) Examples Fluorescent lights, Classroom, Studio Fill lights (large round lights) Slide 7 Light, Color, Lighting Light Intensity Light Intensity Amount of light that falls on a given area. Amount of light that falls on a given area. Measurement Lux (European Term); Footcandles (American Term) Measurement Lux (European Term); Footcandles (American Term) Baselight refers to overall light intensity. Baselight refers to overall light intensity. Low Baselight open iris to allow more light into camera. Low Baselight open iris to allow more light into camera. High Baselight close down iris to allow less light into camera. High Baselight close down iris to allow less light into camera. Slide 8 Light, Color, Lighting Baselight Example Baselight Example Holiday Choir Concert iris on Auto and picture washed out. Iris set at 2.8 +/- Holiday Choir Concert iris on Auto and picture washed out. Iris set at 2.8 +/- Holiday Band/Strings Concert iris on Manual and iris adjusted to 5.8 to 7 for quality picture. Holiday Band/Strings Concert iris on Manual and iris adjusted to 5.8 to 7 for quality picture. Slide 9 Light, Color, Lighting Shadows Shadows Usually unaware of shadows Usually unaware of shadows Two Types Two Types Attached Attached Falloff Falloff Slide 10 Changing the Field of View Changing the Field of View Move the camera closer to event. Move the camera closer to event. Change the focal length by zooming In or Out. Change the focal length by zooming In or Out. Slide 11 Light, Color, Lighting Attached Shadows Attached Shadows Tied to object Tied to object Help us define the basic form or an object Help us define the basic form or an object Contribute to texture Contribute to texture Slide 12 Light, Color, Lighting Slide 13 Rough Texture Smooth Texture Slide 14 Light, Color, Lighting Attached Shadows Attached Shadows Reveal Reveal Form Form Texture Texture Slide 15 Light, Color, Lighting Cast Shadows Cast Shadows Seen Independent of the object. Seen Independent of the object. Hand shadows on wall Hand shadows on wall Hand not seen shadow seen Hand not seen shadow seen Slide 16 Light, Color, Lighting Cast Shadows Cast Shadows Help tell us where things are and when events take place. Help tell us where things are and when events take place. Examples Shadows of utility poles, traffic signs, building walls. Pg. 123 Examples Shadows of utility poles, traffic signs, building walls. Pg. 123 Note: Even if Cast Shadows touch the base of the object they remain Cast Shadows NOT Attached Shadows Note: Even if Cast Shadows touch the base of the object they remain Cast Shadows NOT Attached Shadows Slide 17 Light, Color, Lighting Falloff Falloff Indicates the degree of change from light to shadow. Indicates the degree of change from light to shadow. The speed with which light area turns into shadow area the brightness contrast between the light and shadow sides of an object. The speed with which light area turns into shadow area the brightness contrast between the light and shadow sides of an object. Slide 18 Light, Color, Lighting Fast Falloff Fast Falloff Change from light to dense shadow is extremely abrupt. Change from light to dense shadow is extremely abrupt. High Contrast between areas. High Contrast between areas. Slow Falloff Slow Falloff Gradual change from light to shadow. Gradual change from light to shadow. Subtle Contrast between areas. Subtle Contrast between areas. Slide 19 Light, Color, Lighting Falloff Falloff Defines the contrast between light and dark areas and how quickly light turns into shadow. Defines the contrast between light and dark areas and how quickly light turns into shadow. Slide 20 Light, Color, Lighting Color Color Basic Process of Color Mixing Basic Process of Color Mixing TV Receiver and generated colors TV Receiver and generated colors Color Temperature and Mixing Color Temperature and Mixing Slide 21 Light, Color, Lighting Primary Light Colors Primary Light Colors Video Camera Beam Splitter takes White light and creates: Video Camera Beam Splitter takes White light and creates: Red Red Green Green Blue Blue Slide 22 Light, Color, Lighting Slide 23 Slide 24 TV Receiver TV Receiver Works on color mixing principle Works on color mixing principle 3 Electron guns in neck of tube 3 Electron guns in neck of tube One gun fire beams of light at Red, another at Green, etc. One gun fire beams of light at Red, another at Green, etc. More intense the beam the more the dots of color light up. More intense the beam the more the dots of color light up. Mixing color. Mixing color. Slide 25 Light, Color, Lighting Slide 26 White Balance White Balance Not all light sources produce light of the same Whiteness. Not all light sources produce light of the same Whiteness. Examples candle (reddish); fluorescent (bluish); flashlight ( weak batteries bluish, strong batteries whiter) Examples candle (reddish); fluorescent (bluish); flashlight ( weak batteries bluish, strong batteries whiter) Slide 27 Light, Color, Lighting Color Temperature Color Temperature Standard by which we measure the relative reddishness or bluishness of white light. Standard by which we measure the relative reddishness or bluishness of white light. Kelvin Degrees Kelvin Degrees Measures the color differences of white light. Measures the color differences of white light. Slide 28 Light, Color, Lighting Kelvin Degrees Kelvin Degrees More Bluish the white light the higher the color temperature More Bluish the white light the higher the color temperature More Reddish the white light the lower its color temperature. More Reddish the white light the lower its color temperature. Slide 29 Light, Color, Lighting Slide 30 Slide 31 Kelvin Degrees Kelvin Degrees Outdoor Light much more Bluish than indoor light. Outdoor Light much more Bluish than indoor light. Standard Outdoor Illumination Measurement 5600 degrees K Standard Outdoor Illumination Measurement 5600 degrees K Standard Indoor Illumination Measurement 3200 degrees K Standard Indoor Illumination Measurement 3200 degrees K Slide 32 Light, Color, Lighting Gels Gels Color Filter used in Studio and Field lighting Color Filter used in Studio and Field lighting Affects light source Affects light source Blue Gel raises temperature of studio light Blue Gel raises temperature of studio light Red Gel lowers temperature of studio light. Red Gel lowers temperature of studio light. Slide 33 Light, Color, Lighting White Balancing White Balancing Adjusting the camera so it reproduces a white object as white on the screen Regardless of whether it is illuminated by a high color temperature source or a low color temperature source. Adjusting the camera so it reproduces a white object as white on the screen Regardless of whether it is illuminated by a high color temperature source or a low color temperature source. Required for color continuity. Required for color continuity. Slide 34 Light, Color, Lighting Lighting Instruments Lighting Instruments Two types: Two types: Spotlights Spotlights Floodlights Floodlights Slide 35 Light, Color, Lighting Spotlights Spotlights Throw Directional Light Throw Directional Light Lights specific areas Lights specific areas Sharp beam of light Sharp beam of light Floodlights Floodlights Lights general area Lights general area Diffused light Diffused light Non-directional Non-directional Slide 36 Light, Color, Lighting Fresnel Spotlight Fresnel Spotlight Workhorse of studio spotlights Workhorse of studio spotlights Allows light beam to be adjusted Allows light beam to be adjusted Barn Doors Barn Doors Slide 37 Light, Color, Lighting Slide 38 Slide 39 Slide 40 Point to Remember Point to Remember Light, Color, Lighting Slide 41 Floodlights Floodlights Non-directional light Non-directional light Shadows are soft and transparent Shadows are soft and transparent Types Types Broad Broad Softlight Softlight Scoop Scoop Light, Color, Lighting Slide 42 Broad Spotlight Broad Spotlight Open-faced Open-faced Large tube-like lamps Large tube-like lamps Slide 43 Light, Color, Lighting Softlight Softlight Large opening covered with diffusing material that scatters light. Large opening covered with diffusing material that scatters light. Renders shadows invisible Renders shadows invisible Slow falloff lighting Slow falloff lighting Slide 44 Light, Color, Lighting Scoop Scoop Small & flexible floodlight Small & flexible floodlight 3200 degrees K 3200 degrees K Soft light Soft light More directional More directional Used for fill to slow Used for fill to slow down falloff down falloff Scrim diffuses light Scrim diffuses light Slide 45 Light, Color, Lighting Slide 46 EFP (Electronic Field Production) Light EFP (Electronic Field Production) Light Slide 47 Light, Color, Lighting Floodlights Floodlights Produce general, non-directional illumination. Produce general, non-directional illuminati