How Digital Photography Works

Summary

A full-color, illustrated adventure into the high-tech wonders inside your digital camera by the author/illustrator team that created the bestsellingHow Computers Work. With clear and simple explanations that say, "You, too, can understand this," and brilliant, full-color illustrations,How Digital Photography Works, Second Edition, gives you detailed information on the hidden workings of digital cameras, professional picture-taking techniques, and even photo-editing software. Some of the topics covered in this groundbreaking book include: How Digital Viewfinders Frame Your Pictures How Twin Lens Cameras and Tilt-and-Shift Lenses Change the Rules How Cameras Focus on Moving Targets How Exposure Systems Balance Aperture and Shutter How Electronic Flashes Create a Burst of Light How Studio Lighting Creates a Perfect Lighting Environment How Color Calibration Makes What You See on the Screen Match What You See on Paper How Your Camerars"s Microprocessor Manipulates Images How Photoshop Expands a Photographerrs"s Artistry Contents Introduction xii Part 1: Getting to Know Digital Cameras 2 Chapter 1 The Workings of a Digital Camera 6 Chapter 2 Inside Digital Video Cameras 14 Part 2: How Digital Cameras Capture Images 22 Chapter 3 How Lenses Work 26 Chapter 4 How Light Plays Tricks on Perception 48 Chapter 5 How Digital Exposure Sifts, Measures, and Slices Light 62 Chapter 6 How Technology Lets There Be Light 84 Chapter 7 How Light Becomes Data 98 Chapter 8 How New Tech Changes Photography 118 Part 3: How the Digital Darkroom Works 138 Chapter 9 How Software Changes Pixels by the Numbers 142 Chapter 10 How Digital Retouching Rescues Family Heirlooms 162 Chapter 11 How the Digital Darkroom Makes Good Photos into Great Fantasies 170 Part 4: How Digital Print-Making Works 180 Chapter 12 How Computers and Printers Create Photographs 184 Chapter 13 How Photo-Qualit

Introduction	p. xii
Getting to Know Digital Cameras	p. 2
The Workings of a Digital Camera	p. 6
Gathering the Light	p. 8
Creating the Image	p. 10
Storing the Image	p. 12
Inside Digital Video Cameras	p. 14
How the Digital Camcorder Captures Future Memories	p. 18
How a Professional Digital Video Camera Works	p. 20
How Digital Cameras Capture Images	p. 22
How Lenses Work	p. 26
How Light Works	p. 28
How a Lens Bends Light	p. 30
How We Perceive Detail	p. 32
How a Lens Focuses an Image	p. 34
The Magnifying Glass Effect	p. 36
How Lenses Dont Focus	p. 38
How Active Autofocus Makes Pictures Sharp	p. 40
How Passive Autofocus Sees Sharp and Fuzzy	p. 42
How a High-Tech Motor Moves the Lens	p. 44
How the Eye Controls Autofocus	p. 46
How Light Plays Tricks on Perception	p. 48
How Viewfinders Frame Your Pictures	p. 50
How Lenses See Far and Wide	p. 52
How Digital Lenses Manipulate Space	p. 54
How Optical Zooms Zoom	p. 56
How Digital Zoom Fakes It	p. 58
How Perception Creates Depth of Field	p. 60
How Digital Exposure Sifts, Measures, and Slices Light	p. 62
How a Diaphragm Controls Light	p. 64
How a Shutter Slices Time	p. 66
How a Camera Measures Light	p. 68
How Light Meters See the World	p. 70
How Digicams Juggle Exposure and Creativity	p. 72
How Exposure Systems Balance Aperture and Shutter	p. 74
How Digital Photographers Remain Masters of Their Domains	p. 76
How Digital Cameras Create a Whiter Shade of White	p. 78
How Speed Creates Noisy Pictures	p. 80
How Histograms Run the Gamut	p. 82
How Technology Lets There Be Light	p. 84
How Electronic Flash Works	p. 86
How the Flash Knows When to Quit	p. 88
How Shutter and Flash Sync	p. 90
How a Flash Turns Eyes Red	p. 92
How Fill Flash Works	p. 93
How Studio Lighting Works	p. 94
How Photographers Control Light and Shadow	p. 96
How Light Becomes Data	p. 98
How Film Photography Captures an Image	p. 100
How a Microchip Catches a Picture	p. 102
How Image Sensors Differ	p. 104
How the Foveon Image Sensor Stacks It On	p. 106
How an Image Becomes Data	p. 108
How Algorithms Smooth Out a Pictures Rough Spots	p. 110
How Software Compresses Pictures for Storage	p. 112
How Pictures Are Stored on a Chip	p. 114
How a Digital Camera Squeezes Video Down to Size	p. 116
How New Tech Changes Photography	p. 118
How Digital Tech Changes the Way Lenses Work	p. 120
How Four Thirds Digital Cameras Create a New Standard	p. 122
How Digital Cameras Cure the
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