Canon S410 - PowerShot Digital ELPH Camera, Руководство пользователя

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ISO Speed (p.85)
The ISO speed is the numeric representation of the camera’s sensitivity to
light. The higher the ISO speed, the higher the sensitivity. A high ISO speed
allows you to shoot images in dark indoor or outdoor conditions without a
flash and also helps prevent blurred images due to camera shake. This is
convenient when shooting images in places where flash photography is
prohibited. The ISO speed setting makes full use of the available light,
resulting in images that convey the feel of the place they were shot.
Advanced Technique for the Macro mode (p.60)
Macro mode can make unique images when used with the zoom function.
For example, shooting a flower at maximum wide angle in Macro mode
allows the camera to bring both the flower and the background into focus.
However, shooting at maximum telephoto can throw the background out of
focus to make the flower stand out.
ISO 50 equivalent ISO 400 equivalent
Macro with the wide
angle zoom Macro with the telephoto
zoom