lighting-20may10-150dpi-med

lighting-20may10-150dpi-med - Photographic lighting CS 178,...

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Photographic lighting Marc Levoy Computer Science Department Stanford University CS 178, Spring 2010 Recap slides added after the lecture on 5/20/10.
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! Marc Levoy Outline ! taxonomy of light sources ! lighting for portraiture ! studio lighting ! special lighting problems ! Fash photography 2
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! Marc Levoy Taxonomy of light sources [Langer and Zucker, CVPR 1997] 3
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! Marc Levoy Geometry for table on previous slide (contents of whiteboard) ! h x and h y give spatial extent of light source (zero or inFnity, i.e. point or area), and h p and h q give angular extent (zero or inFnity, i.e. parallel beam or fan beam) 4
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! Marc Levoy What’s different between these two? 5 (Hunter)
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Leonardo, study of umbra and penumbra
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! Marc Levoy Lighting for portraiture ! conventional studio lighting ! unconventional lighting ! available light ! narrative light 7
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Yousuf Karsh, Winston Churchill, 1941
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Yousuf Karsh, Audrey Hepburn 1956
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Yousuf Karsh, Peter Lorre, 1946
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! Marc Levoy Photography in available light ! challenging ! worthwhile ! requires patience and luck ! always carry your camera 11
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Yousuf Karsh, Georgia O’Keeffe, 1956
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Richard Avedon, Oil Field Worker, 1980
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Richard Avedon, Sandra Bennett, 1980 Avedon working outdoors
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Caravaggio, The Calling of St. Matthew, 1599
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Rembrandt, Belshazzar’s Feast, 1599
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! Marc Levoy Studio lighting 19 foodlight zebra board lights with diFFusers spotlight with refective umbrella strobe spotlight (Kodak)
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! Marc Levoy Adjustments on studio spotlights 20 barn doors flter holder goniometric diagram showing luminous intensity at each angle zoom control
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! Marc Levoy Lighting rigs can be large 21 soft box Flm view camera with digital light meter polaroid preview pictures 1970’s haircut (Kodak)
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! Marc Levoy Basic portrait lighting 22 main/key fll accent/rim background (London)
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! Marc Levoy Basic portrait lighting 23 (London)
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! Marc Levoy Alternative lighting arrangements ! main light on side towards camera - broadens narrow faces ! main light on side of face away from camera - most common ! main light directly in front of face - glamour lighting 24 short broad butterFy
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! Marc Levoy Alternative names for arrangements ! broad lighting is sometimes called Rembrandt lighting note triangular light on her left cheek (right side of image) 25 Rembrandt van Rijn, Self Portrait, 1660 (Varis)
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! Marc Levoy key:fll light ratio ! 8:1 means 3 F/stops (3 doublings) ! think about the mood you want to convey ! the color oF the key and fll lights can be diFFerent. .. 26 1:1 2:1 4:1 8:1 (London)
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Maxfeld Parrish, Daybreak, 1922
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Pixar, Toy Story, 1995
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! Marc Levoy Professional photographic lighting manuals 29 (Kodak) photographed by D.W. Mellor diffused spotlight diffuse reFector
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Marc Levoy ! darkfeld lighting
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lighting-20may10-150dpi-med - Photographic lighting CS 178,...

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