Using The Zoom (Focal Length) - Canon POWERSHOT PRO1 User Manual

About the Histogram
The histogram is a graph that allows you to judge the brightness of
the recorded image. The greater the bias toward the left in the
graph, the darker the image. The greater the bias toward to the right,
the brighter the image.
If the image is dark, adjust the exposure compensation to a positive
number. Similarly, adjust the exposure compensation to a negative
number if the image is bright. (p. 92)
Sample
Histograms
Overexposure Warning
In the following conditions, overexposed portions of the image blink.
When an image just shot is being reviewed on the LCD monitor
(Information view) or in the viewfinder.
In the detailed display mode of the Playback mode.

Using the Zoom (Focal Length)

The zoom can be adjusted from 28 to 200 mm (equivalent to 35mm
film format).
Wide
Angle
Zoom Bar
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Dark Image
Telephoto/Wide Angle
You can zoom in (telephoto) and zoom out
(wide angle) by turning the zoom ring. The
zoom bar appears during the zoom
operation.
Telephoto
The zoom speed varies according to how
fast you turn the zoom ring.
Balanced Image
Bright Image
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