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Basic terms and concepts
Photography is … Inverse Square Law Color Temperature Mixing light sources Filters (in camera, light mounted, window mounted) Needs of camera / mood of shot / invisible 3 point lighting (background, kicker) Flat lighting, 2-point?, bounce? Typical equipment Spot or flood Quartz, HSF, HMI, or LED (3200 or 5500) Grid or light stands – TV news, light stands
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Reality check We covered sequencing. You must shoot & edit matched action sequences. We covered framing and point of view. you must have correct framing and point of view. We covered close miking and on camera light required for interviews and stand ups. Overall, grade = you apply what we cover More about lighting and audio / sound
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Light: we’re thinking about…
Equipment, what you use And Aesthetics, how you make it look Adjust it for the camera’s needs and what impact you want for the audience NOT, what your eyes see
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Three point lighting Key --spotlight -- 35-40° angle
Fill -- flood or spread spot (1/2 the key) Back --spotlight (1.5-2x the key) (’hair light’) Subjects and foreground Compare to background -- also important Separate subject from background Kicker --comes from the side over the camera left shoulder of the subject (added to 3-point lighting) External lights must be eliminated / mixing light sources
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Basic terms and concepts
Incident light – direct light, from the source to the subject Reflected Light – bounced, reflected before it reaches the camera’s sensor (or your eyes) Light meter: incident, spot / reflected Camera lens projects light to the focal plane, in the case of video cameras, the chip(s) Single chip / mosaic filter Three chips / beam splitter (RGB)
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Lighting issues 1--Contrast Ratio: brightest to darkest: human eye 100:1, TV 30:1 Sports Stadium daytime shots (shader) Monitors and adjusts the iris opening AGC automatically adjusts 2--Color Temperature: measure of the frequency of the light wave 3,200° K / 5,500° K / red / blue Random room lights
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Basic terms and concepts
Invisible Mood fits content Level of work to make it look ‘natural’ In cinematography, DP For videographer, camera settings plus light in scene There’s always light there Color temperature Light levels Using light in scene plus your light(s) Cannot open up iris to compensate for bad lighting Hard or soft Key, soft box, reflected light / bounced light
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Key to Effective Lighting: Shadow
Shadow gives images form, weight, texture, mood, depth. Also reveals spatial relationships. Never point the camera toward the light BLC in camera menu How do you compensate for light coming from behind? Light usually above, not at eye level Note in upcoming samples
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News field lighting Single camera, on camera light Light kit
Always on interviews Flat lighting (see the subject’s face) Inverse square law, camera / subject distance Light kit Dark location shooting, flood Interviews: 2 point lighting B-roll, event, scene: Interference with event camera adjustment Find something else to shoot
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News field lighting “I really want that shot” –
But … “me in front of the lake with the PAC in the background” has me back lit. The light ‘must be in the subject’s face.’ What do I do? Move somewhere else—you won’t get the shot you want. Same issue with noisy environment and an interview or stand up …
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Key to Effective Lighting: Shadow
Shadow gives images form, weight, texture, mood, depth. Also reveals spatial relationships.
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3 considerations before lighting
Key light placement – 180 degrees around subject – normal is 45 degrees to subject’s left Quality of light – hard or soft Shadow treatment – low key or high key
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Separate the subject from the background !
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3 results of light hitting object
Catch lights in subject’s eyes
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Typical 3 point lighting diagram
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3 Attributes of Key Light
Primary source of illumination Primary factor of overall exposure Determines placement and quality of shadow
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Quality of Light Refers to hard or soft quality of light
“Pin” or undiffused sources create hard shadows that fall off sharply (fresnel) Soft light is created by using large sources of diffused light. Determined by two attributes Large source Relatively close to subject (inverse square law)
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Floor plan of interview Key Light Possibilities
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Subject lit from 3:00 Position
90 degree angle to subject
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Subject lit from 4:00 Position
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Subject lit from 5:00 Position
Between 4:00 and 5:00 is 45 degree angle to subject
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Subject lit from 6:00 Position
Flat lit
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Diffused Lighting Flat lit
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Check the eyes Catch lights show proper placement
Broadlighting: when the key light shines of the side of the face closest to the camera Short lighting: when the key light is on the side of the face opposite the camera; the camera is on the fill or shadow side
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Short lighting Side of face toward camera is shadow
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Broad lighting – side of face toward camera is lit
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Functions of Fill Light
Fills shadows created by key light Does not create new shadow
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Adding Fill for Portrait Lighting
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Fill Light Without Fill With Fill Notice no new shadow
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Backlight Hard backlight Soft Backlight
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Background With Background Without Background
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Hard vs. Soft Key Light Hard Soft
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Relative Distance of Soft Light Source
Close Far
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Lighting Dark Skin with Large Sources of Light
Pin Light Source Large Diffused Source
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What’s wrong with this setup?
One Light Setup Use available Light from existing window What’s wrong with this setup?
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One-Light Setup Available Light One-Light Setup
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One-Light Setup Light directly in front Short Side of Face
Short lighting
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Color Balance Color Temps Mixing Key light with color correction
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Warming the Scene Normal Color Balance Tricking Camera to Produce Warmer Tones
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Using Backlight as Key
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Use Large sources for Specular Reflections
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Backlight as Key Creates Form, Depth, Dynamic Images
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Lighting effects Silhouette – back lit
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What does this communicate?
Lighting effects Silhouette – back lit What does this communicate?
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Lighting effects Cameo: spot on subject, dark background
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Lighting effects Limbo: softly lit (white) background
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Camera Indoor, outdoor, automatic Manual vs. automatic (of anything)
Size of chip Camera to subject distance Light to subject distance
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Lighting Instruments ‘lamp’ not ‘bulb’ Quartz lamp
3,200° K 500 / 1,000 / 2,000 watts / 10,000 New High Speed Fluorescent (HSF) Traditional / HSF at 3,200° K HMI lamp -- 5,500° K (hydrogen medium-arc-length iodide lamp) LED – lower wattage for same illumination
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Lighting Instruments Spotlights Other standard spotlights
Controlled beam / pinned & spread Fresnel Other standard spotlights Ellipsoidal / leko cutters / blackwrap / flags cookies / cucalorus Barn doors / light pole / light stand C-stand, mafer clamp
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Lighting Instruments Floodlights Sometimes covered with scrim or gels
Pans/broads --rectangular shaped Scoop -- Bowl shaped Strip lights for background Softlight -- bulb points inward Sometimes covered with scrim or gels ####
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