Decoding Shooting Information data

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In the Shooting Information display mode, the camera presents a thumbnail of your image along with scads of shooting data, as shown in Figure 4-10. (Remember: Just press the DISP button to cycle from this mode to view only basic information or no information with your image.)

Date/time

Exposure/flash compensation

Date/time

Exposure/flash compensation

Histogram

Color Space

White Balance

Metering mode Exposure mode

Quality File size ISO

Figure 4-10: You can view more data in Shooting Information playback mode.

Histogram

Color Space

White Balance

Metering mode Exposure mode

Quality File size ISO

Figure 4-10: You can view more data in Shooting Information playback mode.

Here's a brief description of what you can glean from the different areas of the screen:

^ Basic Information data: The file number, folder number, aperture, shutter speed, frame number, and total number of images appear in the same locations as in Basic Information mode.

i Histogram: That little graph to the right of the image thumbnail is the histogram, which is an exposure evaluation tool. Check out the next sections for details on interpreting the histogram and changing the histogram style.

i Blinking highlights: Are any areas of the image thumbnail blinking? The blinking spots indicate areas that are completely white — known in the photography business as blown highlights. Depending on where in the image those areas occur, you may or may not have an exposure problem. For example, if someone's face contains the blinking spots, that someone is overexposed, and you should take steps to correct the problem. But if the blinking occurs in, say, a bright window behind the subject, and the subject itself looks fine, you may choose to just ignore the alert.

i Date and Time: Just below the image thumbnail, you see the date and time that you took the picture. Of course, the accuracy of this data depends on whether you set the camera's date and time values correctly, which you do via Setup Menu 1. Chapter 1 has details.

i Exposure and Flash Compensation values: To the right of the aperture readout, you see the exposure compensation and flash compensation settings that were used to take the picture. Chapter 5 explains these features, which are available only in the advanced exposure modes. (The flash compensation data does not appear if you didn't use flash when taking the picture, however.)

i Metering mode: This icon represents the exposure metering mode, another advanced exposure control that you can explore in Chapter 5.

i Exposure mode: Just to the right of the metering mode icon, you see a symbol or letter that indicates which of the camera's exposure modes you used (Full Auto, Portrait, Tv, and so on). Chapter 2 explains the fully automatic modes; Chapter 5 introduces you to the advanced modes.

i White Balance setting: Just above the metering mode and exposure mode data, you see an icon representing the White Balance setting and any custom adjustment you made to that setting. Chapter 6 has details on white balance.

i Color Space: Your camera can capture images in two color spaces, sRGB and Adobe RGB. A color space is just a definition of the spectrum of colors that an image can contain. The color space that you used for the current picture appears just beneath the histogram in the display. You can change color spaces only in advanced exposure modes; Chapter 6 has details about how and why to do so.

i Quality and File Size: These two bits of information appear on the bottom row of the display. For details on the Quality setting and how it affects file size and picture quality, see Chapter 3.

i ISO: This setting controls your camera's sensitivity to light. You can adjust ISO only in the advanced exposure modes; Chapter 5 has the scoop.

Although not shown in Figure 4-10, the following two pieces of data may also show up:

^ Image Protect: Using a feature described later in this chapter, you can "lock" an image to prevent it from being accidentally deleted. If you do so, a little key icon appears to the left of the Quality icon, on the bottom row of the display.

^ B/W: If you capture an image using the Monochrome Picture Style, the letters B/W appear next to the metering mode icon. You can capture monochrome images only in the advanced exposure modes; Chapter 6 has details.

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Reasonable care has been taken to ensure that the information presented in this book is  accurate. However, the reader should understand that the information provided does not constitute legal, medical or professional advice of any kind.

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