Setting ISO speed (PowerShot SX40 HS)
16-Sep-2011
8201261900
Solution
Raise the [ISO speed] to use a fast shutter speed when you wish to reduce the effects of camera shake or avoid blurry subjects, or to turn the flash off when shooting in a dark area.
IMPORTANT
- Lowering the [ISO speed] results in sharper images, but there may be an increased chance of image blurring in certain shooting conditions.
- Raising the [ISO speed] results in a faster shutter speed, reducing image blurring and letting the flash reach greater distances to the subject. The images, however, will appear coarse.
- The following explanations are provided based on the assumption that the [Shooting Mode] is set to [Program] (
). - To set the [ISO Speed], it is necessary to set the [Shooting Mode] to one of the following modes.
- [Custom 1, 2] (
, 
), [Manual] (
), [Aperture Priority] (
), [Shutter Speed Priority] (
), [Program] (), [Movie Digest] (
)
, ), [Manual] (), [Aperture Priority] (), [Shutter Speed Priority] (), [Program] (), [Movie Digest] ()1. Press the <Power> button on the camera.
2. Press the <ISO> (
) button.
) button.
3. The following screen appears on the LCD monitor.
Press the <ISO> () button repeatedly to display the [ISO speed]* you want to set.
The [ISO Speed] you selected is displayed on the screen.* The appropriate [ISO Speed] differs depending on shooting locations. If the camera shake warning icon (
) appears when you press the <Shutter Button> halfway, it is recommended to gradually raise the ISO speed in increments such as [ISO 100], [ISO 200], etc., and then set the [ISO Speed] when the camera shake warning icon () disappears.
) appears when you press the <Shutter Button> halfway, it is recommended to gradually raise the ISO speed in increments such as [ISO 100], [ISO 200], etc., and then set the [ISO Speed] when the camera shake warning icon () disappears.| Guidelines when changing the ISO speed | |
|---|---|
 | Automatically adjusts the ISO speed to the Shooting mode and shooting conditions. |
  | Fine weather conditions, outdoor shooting. |
  | Cloudy, twilight |
  | Nightscapes, dark interiors |
4. If the following icon is shown, the setting is complete (if setting [ISO Speed] to 400).
NOTE
- When the camera is set to [ISO AUTO] (
), you can press the shutter button halfway to display the automatically set ISO speed.