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CA 155 > Chapter 5 > Flashcards

Chapter 5 Flashcards

1
Q

added light

A

light created by instruments that are brought to location to augment the existing light

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2
Q

additive color mixing

A

system of color mixing based on red, green, and blue primaries combined to form white light

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3
Q

attenuate

A

weakening of an energy wave as it travels

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4
Q

backlight

A

element of three point lighting aimed at the back of the subject, which visually separates the subject from the background

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5
Q

beam splitter

A

device inside a video or digital still camera that separates the entering light into three separate colors (red, green , and blue) to be received by the imaging cips or tubes

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6
Q

brightness

A

property of a color that references how close it is to either complete reflection or absorption of light

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7
Q

chrominance

A

color information of light

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8
Q

color temperature

A

specific proportion of wavelengths from across the color spectrum within any source of light measured in kelvins

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9
Q

contrast

A

comparison of tonal values from white to black

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10
Q

dayllight film

A

balanced for approximately 5000K. The film can be used in other lighting conditions by using the correct colored filter on the lens of the camera

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11
Q

electromagnetic energy

A

energy traveling along any of the frequencies included in the electromagnetic spectrum that include from lowest to highest frequency, radio, infrared, visible light, ultraviolet, x-ray, gamma ray, and cosmic ray waves

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12
Q

existing light

A

the natural light in the location

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13
Q

exposure

A

the result of light striking a photosensitive material such as photographic film or a CCD in a video camera

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14
Q

fill light

A

element of three point lighting that softens the shadows cast by the key light

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15
Q

filters

A

colored pieces of glass or plastic placed in front of a lens to change the color and/or intensity of the light

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16
Q

flat lightning

A

lighting in which the fill light has the same intensity as the key light, resulting in no modeling or casting of shadows on the subject

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17
Q

foot-candle

A

unit of measurement for rthe quantity of light, based on the amount of light produced by one candle at a distance of one foot

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18
Q

hard/direct/spotted light

A

light waves traveling in straight lines, producing light energy that covers a limited area with maximum intensity. Results in harsh highlights and dark, hard edged shadows

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19
Q

high key lighting

A

lighting set ups utilizing a 2:1 ley/fill ratio producing an upbeat daytime effect

20
Q

hue

A

property of a color that references where it falls within the color spectrum

21
Q

HMI lights

A

metal-halide gas discharge medium arc-length lamp, made specifically for film and entertainment applications.

22
Q

illuminance

A

the amount of luminous flux per unit area

23
Q

illusion of depth

A

creation of an appearance of the third dimension within a two dimensional medium

24
Q

incident light meter

A

type of light meter that reads the intensity of light emitting from a light source

25
Q

kelvin

A

units of measurement for the color temperature of light

26
Q

key light

A

element of a three point lighting that provides basic illuminations and creates depth through the casting of shadows

27
Q

key: fill ratio

A

brightness relationship between the key and fill lights

28
Q

kicker low key lighting

A

lighting setup with a key/fill ratio greater than 2:1 producing a dramatic or nighttime effect

29
Q

lumen

A

the international unit of light emitting from a light fixture

30
Q

luminance

A

brightness info of light

31
Q

lux

A

the international unit of light measuring the brightness of light as it strikes a surface

32
Q

motivated lighting

A

technique used to promote representational lighting creating the illusion that every source of light in the frame is natural or realistic

33
Q

neutral density

A

gray filters or gels that decrease the intensity of light without affecting color temperature

34
Q

presentational lighting

A

lighting design specifically constructed for the camera that directly acknowledges the presence of the viewer such as a newscast

35
Q

reflected light meter

A

type of light meter that reads the intensity of light bouncing off a surface

36
Q

representational lighting

A

lighting design constructed in an attempt to recreate a real life situation ignoring the presence of the viewer

37
Q

rods

A

sensitive to dim light part of the eye

38
Q

saturation

A

property of color that references the intensity (boldness) of its hue

39
Q

soft/diffused/flooded light

A

light waves bent through or bounced off a surface producing light energy that covers a broad area. results in less intense highlights and lighter softer edged shadows than direct light

40
Q

subtractive color mixing

A

system of color mixing based on cyan, magenta, and yellow primaries that when combined together form black

41
Q

three-point lighting

A

approach to ligiting in which a key light casts shadows a fill light softens shadows and a backlight creates separation between the subject and the background

42
Q

tungsten film

A

balanced for light with a color temperature of 3200 to 3400 K. the film can be used in other lighting conditions by using the correct colored filter on the lens of the camera

43
Q

waveform monitors

A

a special type of oscilloscope used in television production applications. It is typically used to measure and display the level, or voltage, of a video signal with respect to time

44
Q

wavelengths

A

measurement of one full cycle of a wave from crest to crest

45
Q

whitebalancing

A

process within a video or digital still camera that electronically adjects the color of the light entering the lens so that white will be neutral and therefore all other colors accurately reproduced

CA 155 (17 decks)

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