Video Basics Chapter 8 Light, Color, And Lighting

Front 1

The Photographic Principle

Back 1

The triangular arrangement of key, back, and fill lights. (aka triangle/three-point lighting)

Front 2

Key Light

Back 2

Principal source of illumination; usually a spotlight

Front 3

Fill Light

Back 3

Additional light on the opposite side of the camera from the key light to illuminate shadow areas and thereby reduce falloff; usually done with floodlights

Front 4

Back Light

Back 4

Illumination from behind the subject and opposite the camera; usually a spotlight

Front 5

Background Light

Back 5

Illumination of the set pieces and the back-drop (aka set light)

Front 6

Directional Light

Back 6

Light that illuminates a relatively small area and creates harsh, clearly defined shadows

Front 7

Diffused Light

Back 7

Light that illuminates a relatively large area and creates soft shadows

Front 8

Spotlight

Back 8

A lighting instrument that produces directional, relatively undiffused light

Front 9

Floodlight

Back 9

A lighting instrument that produces diffused light

Front 10

Attached Shadow

Back 10

Shadow that is on the object itself. It cannot be seen independent (detached) from the object. (Shadow of nose onto face, nose is attached)

Front 11

Cast shadow

Back 11

Shadow that is produced by an object and thrown (cast) onto another surface. It can be send independent of the object. (Standing in front of a light makes my body cast a shadow on the ground)

Front 12

Contrast

Back 12

The difference between the brightest and the darkest spots in a video image

Front 13

Foot-Candle (fc)

Back 13

The unit of measurement of illumination, or the amount of light that falls on an object

Front 14

Lux

Back 14

European standard unit for measuring light tensity. 10 lux = 1 foot candle

Front 15

Color Temperature

Back 15

Relative reddishness (lower temp) or bluishness (higher temp) of white light, as measured on the Kelvin scale. (normative indoor video lighting is 3,200 K, reddish, and outdoors is 5,600 K, bluish)

Front 16

Falloff

Back 16

the speed with which a light picture portion turns into shadow areas.
fast = light turn abruptly into shadow, there is a lot of difference.
slow = very gradual change from bright to shadowy areas

Front 17

Reflected Light

Back 17

light that is bound off the illuminated object. measured by pointing the light meter close to the object from the direction of the camera

Front 18

Light Plot

Back 18

a plan, similar to a floor plan, that shows the type, size (wattage), and location of the lighting instruments relative to the scene to be illuminated and the general direction of the light beams

Front 19

RGB

Back 19

red green and blue, the basic colors of television

Front 20

High-Key Lighting

Back 20

light background and ample light on the scene.
Nothing to do with the vertical positioning of the key light

Front 21

Low-key lighting

Back 21

fast-fall off with dark background and selectively illuminated areas.
Nothing to do with the vertical positioning of the key light

Front 22

Baselight

Back 22

the general illumination or overall light intensity

Front 23

Kelvin

Back 23

unit of measurement for temperature that tells us how bright the lights are

Front 24

Cookies

Back 24

Metal cutouts whose patterns are projected by the spotlight onto a wall or other surface

Front 25

Reflector

Back 25

a reflective surface used to redirect light towards a given subject or scene

Front 26

Gel

Back 26

a color filter which is a convenient way to convert outdoor instruments for indoor lighting and vice versa