Canon Sure Shot 85 PowerShot A85 Camera User Guide - Page 79

z If the shutter speed shows in red on the LCD monitor, the image is underexposed (insufficient light) or overexposed (too much light). Adjust the aperture value using or until the shutter speed display turns white. z Some aperture values may not be available with certain zoom positions (p. 76). z Please note that camera shake becomes a factor with larger aperture values that slow down shutter speeds. If (camera shake warning) appears in the LCD monitor, secure the camera to a tripod before shooting. z In this mode, the shutter speed range with synchronized flash is 1/60 second to 1/500 second. The aperture value setting may therefore be changed automatically to match the synchronized flash speed even if its value was set previously. Shooting - Advanced Functions Aperture Value Display The larger the aperture value, the smaller the lens aperture. F2.8 F3.2 F3.5 F4.0 F4.5 F4.8 F5.0 F5.6 F6.3 F7.1 F8.0 Manually Setting the Shutter Speed and Aperture You can manually set the shutter speed and aperture to shoot images. You can select settings such as a long exposure to suit your purpose. z When you press the shutter button halfway, a number indicating the difference between the standard exposure* and the selected exposure appears on the LCD monitor. If the difference is more than ±2 steps, "-2" or "+2" appears in red. * The standard exposure is calculated by the AE function according to the selected metering mode. 77