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26 Cards in this Set

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The Photographic Principle
The triangular arrangement of key, back, and fill lights. (aka triangle/three-point lighting)
Key Light
Principal source of illumination; usually a spotlight
Fill Light
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
Back Light
Illumination from behind the subject and opposite the camera; usually a spotlight
Background Light
Illumination of the set pieces and the back-drop (aka set light)
Directional Light
Light that illuminates a relatively small area and creates harsh, clearly defined shadows
Diffused Light
Light that illuminates a relatively large area and creates soft shadows
Spotlight
A lighting instrument that produces directional, relatively undiffused light
Floodlight
A lighting instrument that produces diffused light
Attached Shadow
Shadow that is on the object itself. It cannot be seen independent (detached) from the object. (Shadow of nose onto face, nose is attached)
Cast shadow
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)
Contrast
The difference between the brightest and the darkest spots in a video image
Foot-Candle (fc)
The unit of measurement of illumination, or the amount of light that falls on an object
Lux
European standard unit for measuring light tensity. 10 lux = 1 foot candle
Color Temperature
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)
Falloff
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
Reflected Light
light that is bound off the illuminated object. measured by pointing the light meter close to the object from the direction of the camera
Light Plot
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
RGB
red green and blue, the basic colors of television
High-Key Lighting
light background and ample light on the scene.
Nothing to do with the vertical positioning of the key light
Low-key lighting
fast-fall off with dark background and selectively illuminated areas.
Nothing to do with the vertical positioning of the key light
Baselight
the general illumination or overall light intensity
Kelvin
unit of measurement for temperature that tells us how bright the lights are
Cookies
Metal cutouts whose patterns are projected by the spotlight onto a wall or other surface
Reflector
a reflective surface used to redirect light towards a given subject or scene
Gel
a color filter which is a convenient way to convert outdoor instruments for indoor lighting and vice versa