Chapter 13 Flashcards

1
Q

Fundamental Objectives of Lighting:

A
  • Exposure and visibility
    o Most rudimentary and utilitarian function
  • Depth and dimension
  • Narrative emphasis
  • Tone and mood
  • Consistency
    -Make sure your lighting schemes remain consistent!
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2
Q

Natural light

A

a term meaning a lisght source coming from nature, a source that is not artificial

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3
Q

Artificial light

A

any light source that generates light through electricity

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4
Q

Available light

A

light sources that ordinarily exist in any given location

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5
Q

Mixed lighting

A

combining light sources of different color temperatures (Aaron’s def)

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6
Q

Motivated lighting

A

using movie lights to duplicate where light would logically be emanating from

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7
Q

Intensity

A
  • the strength of the light emitted b a source and is measured by a light meter in footcandles
  • Depends on reflector system
  • Depends of wattage of the lamp used (500 watts, 1000 watts, etc)
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8
Q

Inverse Square Law

A

the intensity of light falls off by the square of the distance from the subject

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9
Q

Point source

A

where the light glows white hot, creating a directional beam

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10
Q

Hard light

A

light that travels from a lamp directly to a subject

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11
Q

Diffuse light

A

light that does not directly illuminate the subject, but instead reflect light off an unpolished, white surface

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12
Q

Color temperature

A

the tonality that a light favors

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13
Q

Tungsten lights (quartz lights)

A

common for artificial lighting instruments for medium-scale film and DV production (color temp. – 3200K degrees) – quite warm

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14
Q

HMI

A

commonly used in bigger production (color temp. = 5600K degrees)- designed to emit a light that matches daylight color temp.

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15
Q

Gels

A

sheets of dyed plastic material that are used in front of a lighting unit to alter the quality of that particular light source BEFORE it falls on the scene

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16
Q

“tough”

A

heat resistant and can be placed on barndoors

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17
Q

Neutral density

A

gray and do not affect the color of a light source: they simply cut down on its intensity

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18
Q

Camera filters

A

glass or hard plastic elements mounted in front of the camera lens to change the quality of the light, from all sources, entering the camera

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19
Q

Matte boxes

A

attach to the front of the camera and extend out from the lens to keep unwanted light from glancing off the lens

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20
Q

Neutral density filters

A

gray tinted filters that simply cut down the amount of light entering the lens

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21
Q

Diffusion filters

A

special effect filters used to soften an image while maintaining sharpness and focus

  • White: creates soft haze
  • Black: softens the image by delicately flaring the dark shadowy areas
22
Q

Graduated filters

A

gradually introduce a filter effect into only a portion of the frame, leaving the rest of the frame unaffected

23
Q

Polarizing filters

A

used to block light rays that are not parallel when entering the lens

24
Q

Diffusion media

A

used to soften the output of a hard light source

25
Q

backlight

A

you will see bright highlights on the top and side edges of the subject

26
Q

sidelight

A

positioned 90 degrees from the camera – comes directly from te side of the subject and has the effect of dividing the illuminated object in half

27
Q

Frontal light

A

illumination that comes essentially from the angle of the camera

28
Q

¾ frontal

A

place 45 degrees from the camera

29
Q

key light

A

primary source of illumination for your scene

fill light: a soft light that is positioned to fill in the shadows created by the key light

30
Q

backlight

A

a light that separates the subject from the background by positioning a somewhat lower intensity hard to semi-soft light at a high angle and behind the subject

31
Q

specials

A

low wattage, unobtrusive lights whose function is to kick up the illumination ona specific object or a small area of the frame for special emphasis

32
Q

practicals

A

lights included in the shot – lamps, sconces, overhead fixtures

33
Q

high-key lighting

A
  • minimizes shadows, texture, and dimensionality
  • ensures visibility in all parts of your scene
  • has a low key-to-fill ratio (2:1, 3:1)
34
Q

low-key lighting:

A
  • yields very dark and prominent shadow areas
  • intensity of the fill light is considerably lower than the key
  • high key-to-fill ratio (16:1, 36:1)
35
Q

reflector board

A

a flat, broad, and lightweight board used to bounce light from a source onto your scene

  • one side has a white, diffused surface that simultaneously bounces and diffuses a hard light source like the sun
  • the other side is a specular or hard side that reflects and maintains the hard quality of the source, much like a mirror
36
Q

open faced spot

A

a common open faced unit that has a movable lamp, allowing it to focus its throw somewhat from a broad to a more narrowly defined area

37
Q

butterfly scrim

A

a large sheet of diffusion material attached to a metal frame

38
Q

broads

A

open faced lights with no spotting capability ,deliver hard, efficiently bright light

39
Q

Chinese lantern

A

a specialized soft light rig that is used exclusively as a fill light

40
Q

Fluorescent lights

A

pass electric charge through mercury gas trapped within a hollow tube causing it to glow

41
Q

c-stands

A

all purpose holder

42
Q

trimming

A

blocking light to keep it from falling where you don’t want it

43
Q

light spill

A

light that falls where it should not

44
Q

barndoors

A

standard addition to almost every lighting unit; design to help control the coverage of the beam

45
Q

scrims

A

wire mesh screens that fit directly in front of the lighting unit; used to reduce intensity

46
Q

flags

A

free standing frames covered with black felt; used to sharply define where the light falls/doesn’t when precise trimming is called for

47
Q

gobo

A

general term for anything that comes between a light source and the scene

48
Q

gator clips

A

ensure a very tight grip ondoors and tables

49
Q

mafer clamps

A

lock onto pipes

50
Q

polecats

A

often used with mafer clamps for hanging light in window frames, doorways, or narrow halls