Displaying Shooting Information. Pentax Optio M20, Optio M20, Optio M-20
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Displaying Shooting Information
The LCD monitor display changes in the following sequence each time you press the 4 / W button: Normal Display, Histogram + Info,
No Info.
For details of each display mode, refer to “Monitor Indications” (p.16).
• S appears when camera shake is likely to occur. To prevent
camera shake, use a tripod and the self-timer function. (p.72)
• Only I and the focus frame are displayed on the LCD monitor in
I mode. Other shooting information is not displayed. You cannot change the information displayed on the LCD monitor by pressing the 4 / W button.
4
Normal Display
OK
OK
Histogram + Info
7 M
OK
No Info
77
4
Using the Histogram
A histogram shows the brightness distribution of an image. The horizontal axis represents brightness (dark at the left and bright at the right) and the vertical axis represents the number of pixels.
The shape of the histogram before (Dark) ← Brightness → (Bright) and after shooting tells you whether the brightness and
Dark portions Bright portions contrast are correct or not, and lets you decide if you need to use EV compensation and take the picture again.
Setting the Exposure (EV Compensation)
1
Understanding Brightness
If the brightness is correct, the graph peaks in the middle. If the image is too dark, the peak is on the left side, and if it is too bright, the peak is on the right side.
Dark image Correct image Bright image
78
When the image is too dark, the part to the left is cut off (dark portions) and when the image is too bright, the part to the right is cut off (bright portions).
Bright portions blink red on the LCD monitor and dark portions blink yellow.
Displaying Shooting Information
1
Displaying Shooting Information in Playback Mode 1 p.112
Understanding Contrast
The graph peaks gradually for images in which contrast is balanced. The graph peaks on both sides but sinks in the middle for images with a large difference in contrast and low amounts of mid-level brightness.
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