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Chapter 8 Light, Color, Lighting.

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Presentation on theme: "Chapter 8 Light, Color, Lighting."— Presentation transcript:

1 Chapter 8 Light, Color, Lighting

2 Light, Color, Lighting Key Terms Light Shadows Color
Lighting Instruments Lighting Techniques

3 Light, Color, Lighting Key Terms Page 116 25 Terms Read, Study

4 Light, Color, Lighting Types of Light Directional Diffused

5 Light, Color, Lighting Directional Light Direct Precise Hard Shadows
Used to light specific areas Examples – Sun, Flashlight, Car Headlights, Studio spotlights

6 Light, Color, Lighting Diffused Light General Not Precise Spreads
Seems to come from all directions Used to light large areas Examples – Fluorescent lights, Classroom, Studio Fill lights (large round lights)

7 Light, Color, Lighting Light Intensity
Amount of light that falls on a given area. Measurement – Lux (European Term); Footcandles (American Term) Baselight – refers to overall light intensity. Low Baselight – open iris to allow more light into camera. High Baselight – close down iris to allow less light into camera.

8 Light, Color, Lighting Baselight Example
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.

9 Light, Color, Lighting Shadows Attached Falloff
Usually unaware of shadows Two Types Attached Falloff

10 Changing the Field of View
Move the camera closer to event. Change the focal length by zooming In or Out.

11 Light, Color, Lighting Attached Shadows Tied to object
Help us define the basic form or an object Contribute to texture

12 Light, Color, Lighting

13 Light, Color, Lighting Rough Texture Smooth Texture

14 Light, Color, Lighting Attached Shadows Reveal Form Texture

15 Light, Color, Lighting Cast Shadows Seen Independent of the object.
Hand shadows on wall Hand not seen – shadow seen

16 Light, Color, Lighting Cast Shadows
Help tell us where things are and when events take place. 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

17 Light, Color, Lighting Falloff
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.

18 Light, Color, Lighting Fast Falloff Slow Falloff
Change from light to dense shadow is extremely abrupt. High Contrast between areas. Slow Falloff Gradual change from light to shadow. Subtle Contrast between areas.

19 Light, Color, Lighting Falloff
Defines the contrast between light and dark areas and how quickly light turns into shadow.

20 Light, Color, Lighting Color Basic Process of Color Mixing
TV Receiver and generated colors Color Temperature and Mixing

21 Light, Color, Lighting Primary Light Colors
Video Camera Beam Splitter takes White light and creates: Red Green Blue

22 Light, Color, Lighting

23 Light, Color, Lighting

24 Light, Color, Lighting TV Receiver Works on color mixing principle
3 Electron guns in neck of tube One gun fire beams of light at Red, another at Green, etc. More intense the beam the more the dots of color light up. Mixing color.

25 Light, Color, Lighting

26 Light, Color, Lighting White Balance
Not all light sources produce light of the same Whiteness. Examples – candle (reddish); fluorescent (bluish); flashlight ( weak batteries bluish, strong batteries whiter)

27 Light, Color, Lighting Color Temperature Kelvin Degrees
Standard by which we measure the relative reddishness or bluishness of white light. Kelvin Degrees Measures the color differences of white light.

28 Light, Color, Lighting Kelvin Degrees
More Bluish the white light – the higher the color temperature More Reddish the white light – the lower its color temperature.

29 Light, Color, Lighting

30 Light, Color, Lighting

31 Light, Color, Lighting Kelvin Degrees
Outdoor Light – much more Bluish than indoor light. Standard Outdoor Illumination Measurement 5600 degrees K Standard Indoor Illumination Measurement 3200 degrees K

32 Light, Color, Lighting Gels
Color Filter used in Studio and Field lighting Affects light source Blue Gel – raises temperature of studio light Red Gel – lowers temperature of studio light.

33 Light, Color, Lighting 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. Required for color continuity.

34 Light, Color, Lighting Lighting Instruments Two types: Spotlights
Floodlights

35 Light, Color, Lighting Spotlights Throw Directional Light Floodlights
Lights specific areas Sharp beam of light Floodlights Lights general area Diffused light Non-directional

36 Light, Color, Lighting Fresnel Spotlight
Workhorse of studio spotlights Allows light beam to be adjusted Barn Doors

37 Light, Color, Lighting

38 Light, Color, Lighting

39 Light, Color, Lighting

40 Light, Color, Lighting Point to Remember

41 Light, Color, Lighting Floodlights Types Non-directional light
Shadows are soft and transparent Types Broad Softlight Scoop

42 Light, Color, Lighting Broad Spotlight Open-faced
Large tube-like lamps

43 Light, Color, Lighting Softlight
Large opening covered with diffusing material that scatters light. Renders shadows invisible Slow falloff lighting

44 Light, Color, Lighting Scoop Small & flexible floodlight
3200 degrees K Soft light More directional Used for fill to slow down falloff Scrim – diffuses light

45 Light, Color, Lighting

46 Light, Color, Lighting EFP (Electronic Field Production) Light

47 Light, Color, Lighting Floodlights
Produce general, non-directional illumination. They cause slow falloff.

48 Light, Color, Lighting Studio C-Clamp

49 Light, Color, Lighting Safety Do not touch Studio lights

50 Basic Lighting Key Light Fill Light Back Light Triangle Lighting

51 Light, Color, Lighting Key Light Principal light source
Reveals basic shape of object Spotlight

52 Light, Color, Lighting Back Light Outlines object against background
Focused spotlight Opposite camera

53 Light, Color, Lighting Fill Light Slows falloff

54 Light, Color, Lighting Background Light Spots Floodlights Illuminates

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59 Light, Color, Lighting Field Lighting Scout Ahead Be prepared
Do not overload circuits Do not waste bulb life Secure light stands Move equipment carefully

60 Light, Color, Lighting Outdoor Lighting The best light
Overcast Day (Natural Lighting)

61 Light, Color, Lighting Measuring Light Incident Light Baselight level
Stand next to talent. Aim a light meter to camera Aim meter at lights Check light meter needle reading Maintain same needle reading

62 Light, Color, Lighting Reflected Light
Stand next to talent and point light meter towards the light and the shadows from the direction of the camera. Difference in readings provides lighting contrast. Use video monitor as best guide

63 Points to Remember Type of light and intensity Shadows Colors
Lighting Instruments Basic Lighting Principal Measuring Light

64 Light, Color, Lighting

65 Light, Color, Lighting Discussion


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