How Digital Photography Works (How It Works Series)

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Overview

A full-color, illustrated adventure into the high-tech wonders inside your digital camera by the author/illustrator team that created the bestselling How 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. ...

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Overview

A full-color, illustrated adventure into the high-tech wonders inside your digital camera by the author/illustrator team that created the bestselling How 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 Camera’s Microprocessor Manipulates Images

· How Photoshop Expands a Photographer’s Artistry


Introduction

Part 1: Getting to Know Digital Cameras

Chapter 1 The Workings of a Digital Camera

Chapter 2 Inside Digital Video Cameras

Part 2: How Digital Cameras Capture Images

Chapter 3 How Lenses Work

Chapter 4 How Light Plays Tricks on Perception

Chapter 5 How Digital Exposure Sifts, Measures, and Slices Light

Chapter 6 How Technology Lets There Be Light

Chapter 7 How Light Becomes Data

Chapter 8 How New Tech Changes Photography

Part 3: How the Digital Darkroom Works

Chapter 9 How Software Changes Pixels by the Numbers

Chapter 10 How Digital Retouching Rescues Family Heirlooms

Chapter 11 How the Digital Darkroom Makes Good Photos into Great Fantasies

Part 4: How Digital Print-Making Works

Chapter 12 How Computers and Printers Create Photographs

Chapter 13 How Photo-Quality Printers Work

Glossary

Index

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Product Details

  • ISBN-13: 9780789736307
  • Publisher: Que
  • Publication date: 3/9/2007
  • Series: How It Works
  • Edition number: 2
  • Pages: 240
  • Product dimensions: 8.00 (w) x 10.00 (h) x 0.47 (d)

Meet the Author

Author Ron White is the author of the award-winning, decade-long best-seller How Computers Work and a dozen other books on digital photography, computers, and underground music. He has been a photojournalist for three decades, both shooting photos and writing for some of the best-known publications in the United States. He gained attention early in his career by leaving the water running in the darkroom at the San Antonio Light, flooding the publisher’s office. He has since acquired drier recognition as a newspaper and magazine executive and as an award-winning writer and publication designer. He has been recognized by the National Endowment for the Humanities and the Robert F. Kennedy Awards for his criticism and investigative reporting and by the National Magazine Awards for his self-effacing humor as a feature writer and columnist at PC Computing. He has been a host on NPR’s Beyond Computing and a frequent guest on television and radio to explain new technology. Currently, he is working on The Daily Digital Digest, a newsletter and Internet blog to expand on the information found in his books. Tim Downs and Ron White have worked together on editorial and advertising technical guides for more than 10 years. Ron lives with his wife, Sue, in San Antonio. He can be reached at ron@ronwhite.com.

Illustrator Timothy Edward Downs is an award-winning magazine designer, a photographer, and the illustrator of the best-seller How Computers Work. He has directed and designed several national consumer business, technology, and lifestyle magazines, always infusing a sense of “How it Works” into every project. By tapping his vast computer system and process knowledge, Tim has developed the richly illustrative style that is unique to the How It Works series. In How Digital Photography Works, Tim has further blurred the lines between informational illustration and photography.

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Table of Contents

Introduction xii

Part 1: Getting to Know Digital Cameras 2

Chapter 1 The Workings of a Digital Camera 6

Gathering the Light 8

Creating the Image 10

Storing the Image 12

Chapter 2 Inside Digital Video Cameras 14

How the Digital Camcorder Captures Future Memories 18

How a Professional Digital Video Camera Works 20

Part 2: How Digital Cameras Capture Images 22

Chapter 3 How Lenses Work 26

How Light Works 28

How a Lens Bends Light 30

How We Perceive Detail 32

How a Lens Focuses an Image 34

The Magnifying Glass Effect 36

How Lenses Don’t Focus 38

How Active Autofocus Makes Pictures Sharp 40

How Passive Autofocus Sees Sharp and Fuzzy 42

How a High-Tech Motor Moves the Lens 44

How the Eye Controls Autofocus 46

Chapter 4 How Light Plays Tricks on Perception 48

How Viewfinders Frame Your Pictures 50

How Lenses See Far and Wide 52

How Digital Lenses Manipulate Space 54

How Optical Zooms Zoom 56

How Digital Zoom Fakes It 58

How Perception Creates Depth of Field 60

Chapter 5 How Digital Exposure Sifts, Measures, and Slices Light 62

How a Diaphragm Controls Light 64

How a Shutter Slices Time 66

How a Camera Measures Light 68

How Light Meters See the World 70

How Digicams Juggle Exposure and Creativity 72

How Exposure Systems Balance Aperture and Shutter 74

How Digital Photographers Remain Masters of Their Domains 76

How Digital Cameras Create a Whiter Shade of White 78

How Speed Creates Noisy Pictures 80

How Histograms Run the Gamut 82

Chapter 6 How Technology Lets There Be Light 84

How Electronic Flash Works 86

How the Flash Knows When to Quit 88

How Shutter and Flash Sync 90

How a Flash Turns Eyes Red 92

How Fill Flash Works 93

How Studio Lighting Works 94

How Photographers Control Light and Shadow 96

Chapter 7 How Light Becomes Data 98

How Film Photography Captures an Image 100

How a Microchip Catches a Picture 102

How Image Sensors Differ 104

How the Foveon Image Sensor Stacks It On 106

How an Image Becomes Data 108

How Algorithms Smooth Out a Picture’s Rough Spots 110

How Software Compresses Pictures for Storage 112

How Pictures Are Stored on a Chip 114

How a Digital Camera Squeezes Video Down to Size 116

Chapter 8 How New Tech Changes Photography 118

How Digital Tech Changes the Way Lenses Work 120

How Four Thirds Digital Cameras Create a New Standard 122

How Digital Cameras Cure the Shakes 124

Electronic Image Stabilization 126

Vari-Angle Prism System 127

Piezoelectric Supersonic Linear Actuator Stabilization 128

Shift Image Stabilizer 129

How Lenses Tilt with Images 130

How Two Lenses Work As One 132

How a Light Field Camera Can Focus Anything 134

How Digital Cameras Tidy Up 136

Part 3: How the Digital Darkroom Works 138

Chapter 9 How Software Changes Pixels by the Numbers 142

How Software Manipulates Images on the Pixel Level 144

How the Digital Darkroom Focuses Pictures After They’re Taken 146

How Blurred Becomes Better 148

How Software Changes Exposure After the Shot 150

How Software Corrects Bad Lighting 152

How Bigger Pictures Preserve Little Details 154

How a Digital Darkroom Improves Even Correctly Exposed Photos 156

How Photoshop Multiplies a Photo’s Dynamic Range 158

How Layers Serve and Protect Photos 160

Chapter 10 How Digital Retouching Rescues Family Heirlooms 162

How Software Removes Dust and Tears 164

How the Digital Darkroom Revives Your Ancestors 166

How Darkroom Software Brings Pictures Back to Life 168

Chapter 11 How the Digital Darkroom Makes Good Photos into Great Fantasies 170

How to Change a Red Rose to Blue 172

How Digital Photos Make Fun of You 174

How Software Makes One Photo Out of Many 176

How Panorama Programs Stitch Several Photos into One Superwide 178

Part 4: How Digital Print-Making Works 180

Chapter 12 How Computers and Printers Create Photographs 184

How a Camera’s LCD Displays Photos 186

How Colors Are Created 188

How Color Calibration Works 190

Chapter 13 How Photo-Quality Printers Work 192

How a Printer Rains Ink to Create a Picture 194

How Photo Inkjet Printers Work 196

How Dye-Sublimation Printers Work 198

Glossary 200

Index 214

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  • Posted December 27, 2011

    Excellent book on the hows & whys of digital photo imaging

    Capturing a photographic image on silver halide film and a digital sensor is pretty much the same; light is admitted for a prescribed amount of time (shutter speed) at a prescribed intensity (F stop). Not really, actually even exposure time and aperture size have far different and often more detrimental effects on the resulting photographic image with a digital imaging sensor than a silver halide emulsion. Likewise, lens and filter coating are much more critical in digital image capture as well. Want to know more? Read this excellent book and learn just how different digital image capture is from silver halide image capture. They are truley worlds apart.

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