LIGHTING - PowerPoint PPT Presentation

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LIGHTING

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LIGHTING The technique of adding light and color to a scene Lighting Approach: Consider the effect you want to achieve... bright & open, dark & mysterious, shadowy ... – PowerPoint PPT presentation

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Title: LIGHTING


1
LIGHTING
  • The technique of adding light and color to a scene

2
Lighting
  • Approach
  • Consider the effect you want to achieve... bright
    open, dark mysterious, shadowy and intimate,
    'natural, soft/harsh
  • then devise a method for achieving it.

3
Other factors
  • talent movement (sitcoms lit brightly to
    accommodate movement on 'stage'... lighting
    generally not key to story)
  • type of production - hard news, magazine/depth
    interview style, narrative

4
Other factors
  • goals of production
  • availability of equipment and time constraints

5
Lighting Units (fixtures, housings)
  • Spots
  • focused beam, bright, intense
  • lamp (bulb) moved to focus/flood beam
  • very common

6
Fresnel (freh-NEL)Barbizon link
  • Very common studio and field light
  • Adjustable bulb - slides back and forth within
    the light housing
  • Special lens at front of light - circular pattern
    adds both focus and diffusion to the light beam

7
Ellipsoidal (Leko)
  • complex lens system
  • very precise, less common, studio only
  • Barbizon link

8
External reflector spot
  • Field" light w/moveable bulb
  • Very common in field production
  • 1000W Lowel DP Light
  • Chimera Soft Box
  • 650W fotolite
  • Barn doors
  • 250W Lowel Pro Light
  • Umbrella mount

9
Flood
  • diffused light, reduces/fills shadows
  • scrim can be added to increase diffusion
  • Scoop -fixed" bulb, soft light
  • Broadlight - "box" shaped, may have many lamps,
    used in studio or field.
  • Lowel Tota light - 650W
  • Often used w/umbrella
  • Built-in barn doors (2, not 4)

10
Elements (bulbs)
  • INCANDESCENT - typical light bulbs, yellowish
    color
  • QUARTZ/HALOGEN - very bright and hot
  • 3200K
  • - handle w/care use gloves, oils from hands can
    ruin bulb
  • HMI - halogen-metal-iodine - 5600K
  • bluish light, not as common

11
Mounting devices
  • Lighting grid - mounted on ceiling, 12-20 feet
    high (studio only)
  • C-clamp (studio) - connects to grid
  • Light stands (field) - tip easily, use sandbags
    if possible, be careful when extending fully
  • Various field light clamps - ceiling clips, door
    mounts...

12
Brightness control
  • Studio lighting control panel - all lighting
    inputs controlled from panel
  • Dimmers - in-line power controls which enable
    lights to be dimmed (make sure light wattage
    doesn't exceed dimmer capacity e.g., 600 watts)

13
Diffusion devices
  • Goal - soften light and shadows, reduce harshness
  • Reflector umbrella - light faces away from the
    camera, bounces off of umbrella (think 'senior
    portrait').
  • Soft box - nylon box mounts to lighting unit with
    a wire frame, white material softens light
  • Diffusion gels - different materials which soften
    light, connected with clothes pins or gel frame

14
Diffusion continued
  • Bounce light off the ceiling/wall to create a
    diffused light on the subject.
  • Bounce-fills - white/gold nylon on expandable
    frames to bounce light onto fill side of
    subject.  Very useful in the sun or with only one
    light.
  • - put bounce on opposite side of key light
  • - use a C-stand if possible

15
Diffusion continued
  • Silks/scrims (some bounce fills can do this too)
  • Reduce the amount of sunlight falling on talent
    (creates shade) a C-stand if possible

16
Direction control
  • Barn doors - fit onto lighting unit, help "shape"
    light
  • Snoot - same, circular pattern ('coffee can' on
    front of light helps really narrow beam)

17
Color Gels
  • colored acetate mounted on front of light
  • adds color to light
  • can be used to 'correct' color (turn tungsten to
    daylight temp or vice versa)
  • CTO - orange, makes daylight warmer
  • CTB - blue, makes lighting units match sunlight

18
LIGHTING TECHNIQUE
  • 3-POINT LIGHTING - basic method
  • KEY LIGHT - main light source on subject
  • focused, tight beam
  • creates strong shadow
  • vertical angle 30-40 degrees
  •     too low - reflection, shadows on wall
  •     too high - shadows on face
  • side angle 15-30 deg. to side of camera
  • Instruments - Fresnel, ellipsoidal, external
    reflector

19
3-Point Lighting contd.
  • FILL LIGHT - soft, diffused,
  • - opposite side of camera from key light
  • - removes shadows from KEY
  • Elements scoop, broad, flooded Fresnel or
    external reflector w/diffusion
  • One person's key can be another's fill.

20
3-Point Lighting contd.
  • BACK LIGHT lights the back of the subject
  • highlights edges, back, hair
  • separates subject from the background
  • higher angle than others - 45-50 deg.
  • so it won't spill into camera lens
  • can be mounted low (rim light)

21
OTHER LIGHTING TECHNIQUES
  • BACKGROUND lighting
  • - lights the 'background'
  • - be selective and careful, light separately
  • - color helps separate subject from background
  • - gobos, 'cookies' can shape light, add patterns
    to light

22
OTHER LIGHTING TECHNIQUES
  • KICKER - low level light, lights specific item or
    area on set
  • Trend is toward lower overall light levels, more
    naturalistic lighting

23
Some basic lighting suggestions
  • Be very aware of the direction, color and
    intensity of light when setting up on location. 
  • Where is the light coming from?
  • Can it be controlled, eliminated?
  • What color is it?  Is outside light bleeding in? 
    What can we do about it?
  • Is light too intense? Too soft?  How can this be
    adjusted?

24
Some basic lighting suggestions
  • 2. Don't set lights until camera position and
    talent position have been determined.  Don't set
    camera and talent until lighting issues have been
    considered.
  • 3. Make sure you look through the viewfinder when
    determining proper light levels (don't just use
    your eyes).

25
Some basic lighting suggestions
  • 4. Do NOT plug lights and cameras into the same
    outlets. Buzz/hum.
  • 5. Never plug a light in with the switch in the
    ON position (ALWAYS turn lights off before
    plugging in).
  • 6. Warn people that you are turning lights on so
    that they don't get 'blinded' by the light.
    STRIKING!

26
Some basic lighting suggestions
  • 7. Use gloves to handle lights once they have
    been turned on - housings get very hot very fast.
  • 8. Never touch the bulbs with bare hands, oils
    will cause them to break.

27
Some basic lighting suggestions
  • 9. Light foreground and background separately.
    Light from main lights should NOT also light the
    background.
  • Provide plenty of room between subject and the
    background.
  • Light the background with separate units.
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