January 2009
Beginner
304 pages
7h 52m
English
Content preview from David Pogue's Digital Photography: The Missing ManualBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Screen Displays
Your camera's screen and viewfinder almost always show more than just the scene before you. They can also display focusing marks, a battery meter, the current settings, and so on.
In fact, even cheapo cameras usually offer a Display button, right on the back, that cycles through various options for overlaying information on the screen:
Standard info. Usually, you see a full-screen preview of what you're about to shoot, overlaid with a few key details: the battery gauge; the number of shots remaining on the memory card; and maybe some photographic settings like the flash mode, the ISO setting (Goose the ISO), and so on. Crosshairs help you find the center point for composing and focusing your shot.
Grid. This option draws a tic-tac-toe board over the entire preview screen, dividing it into thirds vertically and horizontally. It's supposed to be a guideline in case you abide by the Rule of Thirds, described above.
Nothing. If you press the Display button enough times, you eventually come to a setting that removes all overlays from the screen. Now you see only the preview of your shot, which is useful for (a) purists and (b) anyone who has no idea what all of those symbols and readouts even mean.
Histogram. On an SLR or advanced pocket cam, you may also be able to call up the histogram—a graph that shows you how the lights and darks are distributed in the scene. It shows you ...
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