How Digital Photography Works
4848 PART 2 HOW DIGITAL CAMERAS CAPTURE IMAGES How Light Plays Tricks on Perception Chapter 4 ...
CHAPTER 4 HOW LIGHT PLAYS TRICKS ON PERCEPTION^49 They consider me to have sharp and penetrating vision because I see them throu ...
(^50) PART 2 HOW DIGITAL CAMERAS CAPTURE IMAGES How Viewfinders Frame Your Pictures Using the viewfinder on a camera is so insti ...
CHAPTER 4 HOW LIGHT PLAYS TRICKS ON PERCEPTION^51 The All-Digital Viewfinder Theelectronic viewfinder (EVF) on a compact digital ...
The images shown here are for photographs taken with different focal length lenses but at the same distance from the subject. Th ...
The Telephoto Lens Thetelephotolens has a focal length that is longerthan that of the image sensor’s diagonal. (They are also ca ...
(^54) PART 2 HOW DIGITAL CAMERAS CAPTURE IMAGES How Digital Lenses Manipulate Space Telephoto and wide-angle lenses do more than ...
CHAPTER 4 HOW LIGHT PLAYS TRICKS ON PERCEPTION^55 Perspective is not a factor of distance alone. The picture of the cubes was ta ...
How Optical Zooms Zoom The positive element closer to the camera end of the lens doesn’t move. The other positive element (at th ...
After passing through the afocal system, the image—whether enlarged or shrunk—is still unfocused. That task is the job of the la ...
(^58) PART 2 HOW DIGITAL CAMERAS CAPTURE IMAGES How Digital Zoom Fakes It A digital zoom begins by concentrating on just the cen ...
CHAPTER 4 HOW LIGHT PLAYS TRICKS ON PERCEPTION^59 The software built into the camera compares each blank pixel with the colored ...
How Perception Creates Depth of Field The very fact that you have to focus a camera implies that at some point things in front o ...
The newly formed point is only a point in theory. From traveling through the air and the lens, enough of the original light beam ...
6262 PART 2 HOW DIGITAL CAMERAS CAPTURE IMAGES How Digital Exposure Sifts, Measures, and Slices Light CHAPTER 5 ...
Every time you go to a different place it’s lit differently. Annie Leibovitz ALLphotography is about light. Photos may be of imp ...
64 PART 2 HOW DIGITAL CAMERAS CAPTURE IMAGES How a Diaphragm Controls Light Picture a shy sunbather standing in his skivvies in ...
CHAPTER 5 HOW DIGITAL EXPOSURE SIFTS, MEASURES, AND SLICES LIGHT 65 Mounted between two of the lens’s elements is the diaphragm, ...
The electrical current travels to one of two electromagnets that are paired with two sets of curtains. The curtains are made of ...
When the current hits the electromagnet, the magnet pulls the spring latch away from the spring. The spring moves arms attached ...
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