American Cinematographer - August 2008 - 61

Left: In a cavern full of sparkling diamonds, Trevor cautions his companions about the ground beneath their feet, which suddenly shows signs of instability. Below: Plant and animal life becomes increasingly bizarre as their journey progresses. In this scene, the trio is dwarfed by some towering mushrooms. Not many creatures in nature must do that! It’s one of many film-related factors that can contribute to eyestrain during 3-D presentations.” The filmmakers used Sony HDC-F950s, which are designed so that the optical block and the lens can be separated from the rest of the camera. “They can be used to create a very low-profile rig,” notes Brevig. “Other cameras — the Sony F23, for example — don’t come apart, so it’s not as convenient to throw a pair of them onto a Steadicam.” Stereo imaging is a simulation of the way human beings view the world: through two eyes slightly offset from each other. This gives each eye a slightly different perspective on the scene. To re-create that sensation of depth, a stereo image is shot with two cameras, one capturing the image for the right eye, the other camera capturing the image for the left eye. When projected, the images are filtered in a way that allows the viewer’s right eye to see only the right-eye image, and the left eye to see only the left-eye image. (For more on the basic principles of 3-D, see AC April ’08.) The two principal adjustments that go into making a stereo image are the interaxial distance (also called interocular distance, or IO) and convergence. The interocular/interaxial distance is the distance between the two “eyes” when the image is captured: the lines of sight of the two cameras. The average interocular distance for an adult is approximately 2.5", but the interaxial distance between the two cameras can vary widely. The smaller the interaxial distance, the smaller the viewer may feel in the context of the American Cinematographer 61

American Cinematographer - August 2008

Table of Contents for the Digital Edition of American Cinematographer - August 2008

American Cinematographer - August 2008
Contents
Editor's Note
Letters
Short Takes: Death Cab for Cutie’s “I Will Possess Your Heart”
Production Slate: Pineapple Express
Production Slate: Frozen River
Dark Matters
Fathers of the Bride
The Emperor Strikes Back
An Eye-Popping Adventure
Post Focus: Dalsa’s 4K Workflow
Filmmakers’ Forum: Billy Dickson, ASC
New Products & Services
International Marketplace
Classified Ads
Ad Index
In Memoriam: Clifford H. Poland Jr., ASC
Clubhouse News
ASC Close-Up: John S. Bartley
American Cinematographer - August 2008 - American Cinematographer - August 2008
American Cinematographer - August 2008 - Cover2
American Cinematographer - August 2008 - 1
American Cinematographer - August 2008 - 2
American Cinematographer - August 2008 - Contents
American Cinematographer - August 2008 - 4
American Cinematographer - August 2008 - 5
American Cinematographer - August 2008 - 6
American Cinematographer - August 2008 - 7
American Cinematographer - August 2008 - Editor's Note
American Cinematographer - August 2008 - 9
American Cinematographer - August 2008 - Letters
American Cinematographer - August 2008 - 11
American Cinematographer - August 2008 - Short Takes: Death Cab for Cutie’s “I Will Possess Your Heart”
American Cinematographer - August 2008 - 13
American Cinematographer - August 2008 - 14
American Cinematographer - August 2008 - 15
American Cinematographer - August 2008 - Production Slate: Frozen River
American Cinematographer - August 2008 - 17
American Cinematographer - August 2008 - 18
American Cinematographer - August 2008 - 19
American Cinematographer - August 2008 - 20
American Cinematographer - August 2008 - 21
American Cinematographer - August 2008 - 22
American Cinematographer - August 2008 - 23
American Cinematographer - August 2008 - 24
American Cinematographer - August 2008 - 25
American Cinematographer - August 2008 - Dark Matters
American Cinematographer - August 2008 - 27
American Cinematographer - August 2008 - 28
American Cinematographer - August 2008 - 29
American Cinematographer - August 2008 - 30
American Cinematographer - August 2008 - 31
American Cinematographer - August 2008 - 32
American Cinematographer - August 2008 - 33
American Cinematographer - August 2008 - 34
American Cinematographer - August 2008 - 35
American Cinematographer - August 2008 - 36
American Cinematographer - August 2008 - 37
American Cinematographer - August 2008 - Fathers of the Bride
American Cinematographer - August 2008 - 39
American Cinematographer - August 2008 - 40
American Cinematographer - August 2008 - 41
American Cinematographer - August 2008 - 42
American Cinematographer - August 2008 - 43
American Cinematographer - August 2008 - 44
American Cinematographer - August 2008 - 45
American Cinematographer - August 2008 - 46
American Cinematographer - August 2008 - 47
American Cinematographer - August 2008 - The Emperor Strikes Back
American Cinematographer - August 2008 - 49
American Cinematographer - August 2008 - 50
American Cinematographer - August 2008 - 51
American Cinematographer - August 2008 - 52
American Cinematographer - August 2008 - 53
American Cinematographer - August 2008 - 54
American Cinematographer - August 2008 - 55
American Cinematographer - August 2008 - 56
American Cinematographer - August 2008 - 57
American Cinematographer - August 2008 - An Eye-Popping Adventure
American Cinematographer - August 2008 - 59
American Cinematographer - August 2008 - 60
American Cinematographer - August 2008 - 61
American Cinematographer - August 2008 - 62
American Cinematographer - August 2008 - 63
American Cinematographer - August 2008 - 64
American Cinematographer - August 2008 - 65
American Cinematographer - August 2008 - 66
American Cinematographer - August 2008 - 67
American Cinematographer - August 2008 - 68
American Cinematographer - August 2008 - 69
American Cinematographer - August 2008 - Post Focus: Dalsa’s 4K Workflow
American Cinematographer - August 2008 - 71
American Cinematographer - August 2008 - 72
American Cinematographer - August 2008 - 73
American Cinematographer - August 2008 - Filmmakers’ Forum: Billy Dickson, ASC
American Cinematographer - August 2008 - 75
American Cinematographer - August 2008 - New Products & Services
American Cinematographer - August 2008 - 77
American Cinematographer - August 2008 - 78
American Cinematographer - August 2008 - 79
American Cinematographer - August 2008 - International Marketplace
American Cinematographer - August 2008 - Classified Ads
American Cinematographer - August 2008 - Ad Index
American Cinematographer - August 2008 - 83
American Cinematographer - August 2008 - In Memoriam: Clifford H. Poland Jr., ASC
American Cinematographer - August 2008 - 85
American Cinematographer - August 2008 - Clubhouse News
American Cinematographer - August 2008 - 87
American Cinematographer - August 2008 - ASC Close-Up: John S. Bartley
American Cinematographer - August 2008 - Cover3
American Cinematographer - August 2008 - Cover4
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