Canon SX10IS PowerShot SX10 IS Camera User Guide - Page 104

102 Setting the Aperture Available Shooting Modes p. 284 The aperture adjusts the amount of light entering through the lens. When you set the aperture value, the camera automatically selects a shutter speed to match the brightness. Selecting a lower aperture value (opening the aperture) allows you to blur the background and create a beautiful portrait. A higher aperture value (closing the aperture) brings the entire range from foreground to background into focus. The larger the aperture value, the greater the range of the image brought into clear focus. 1 Set the mode dial to . 2 Configure the aperture setting. 1. Use the control dial to change the aperture value. • When using the control dial, the bar will be displayed and the aperture value can be changed. bar Aperture value 3 Shoot. • If the shutter speed is shown in red when the shutter button is pressed halfway, the image is underexposed (insufficient light) or overexposed (too much light). Use the control dial to adjust the aperture value until the shutter speed shows in white (you can also use Safety Shift (p. 101)). Some aperture values may not be available with certain zoom positions (p. 101).