Canon SD790IS PowerShot SD790 IS / DIGITAL IXUS 90 IS Camera User Guide - Page 83

81 Various Shooting Methods z In (Standard) mode, the digital zoom can be used during shooting. z Adjust the zoom before shooting. The zoom factor of the combined optical zoom and digital zoom display on the LCD monitor. When the zoom factor displays in blue, the image will deteriorate. z Before recording, you can set the AE lock and exposure shift. This is effective on ski slopes and the beach when the contrast is too strong between the subject and background or where there are both light and dark areas in the scene and it is desirable to adjust the exposure. 1. Press the button. The exposure will lock (AE lock) and the exposure shift bar will appear in the LCD monitor. 2. Use the or button or turn the control dial to adjust the exposure. Press the button again to release the setting. Also, the setting will be canceled if you press the MENU button or change the white balance, My Colors or shooting mode settings. z If you register the function with the button, you can start shooting a movie simply by pressing the button even if the mode switch is set to or (p. 112). z QuickTime is required to play back movies (Data type: AVI/ Compression method: Motion JPEG) on a computer (Only Windows 2000).