Canon PowerShot SX170 IS - Manual (Page 53)

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Cover
Before Use
Common Camera
Operations
Advanced Guide
Camera Basics
Auto Mode
Other Shooting
Modes
P Mode
Playback Mode
Setting Menu
Accessories
Appendix
Index
Basic Guide
Tv, Av, and M
Mode
2
Compose the shot and shoot.
z z
After one shot, AE is unlocked and [ ] is
no longer displayed.
•
AE: Auto Exposure
• After the exposure is locked, you can adjust the combination of shutter speed
and aperture value by turning the <
5> dial (Program Shift).
Still Images
Changing the Metering Method
Adjust the metering method (how brightness is measured) to suit shooting
conditions as follows.
z z
Press the <
m> button, choose [ ] in
the menu, and choose the desired option
(
=
23 ).
z z The option you configured is now
displayed.
Evaluative
For typical shooting conditions, including backlit shots.
Automatically adjusts exposure to match the shooting conditions.
Center
Weighted Avg.
Determines the average brightness of light across the entire
image area, calculated by treating brightness in the central area
as more important.
Spot
Metering restricted to within the [ ] (Spot AE Point frame),
displayed in the center of the screen.
Still Images
Changing the ISO Speed
z z
Press the <
o> button, choose an option
(either press the <
o><p> buttons or
turn the <
5> dial), and then press the
<
m> button.
z z The option you configured is now
displayed.
Automatically adjusts the ISO speed to suit the shooting mode and
conditions.
Low
High
For shooting outdoors in fair weather.
For shooting in cloudy conditions, or at twilight.
For shooting night scenes, or in dark rooms.
•
To view the automatically set ISO speed when the camera is set to [ ], press
the shutter button halfway.
• Although choosing a lower ISO speed may reduce image graininess, there
may be a greater risk of subject blurriness in some shooting conditions.
• Choosing a higher ISO speed will increase shutter speed, which may reduce
subject blurriness and increase the flash range. However, shots may look
grainy.