Canon s2is PowerShot S2 IS Camera User Guide - Page 88

z If the image would be underexposed (too dark) or overexposed (too bright) and the correct exposure cannot be obtained, the aperture value display on the LCD monitor (or viewfinder) turns red. Adjust the shutter speed with the W or X button so that the aperture value display turns white. z The nature of CCD image sensors is such that noise in the recorded image increases at slow shutter speeds. This camera, however, applies special processing to images shot at shutter speeds slower than 1.3 seconds to eliminate the noise, thereby producing high-quality images. Nevertheless, a certain amount of processing time may be required before the next image can be shot. z The aperture value and shutter speed change according to the zoom state as follows. Maximum Wide Angle*1 Maximum Telephoto*2 Aperture value Shutter Speed (seconds) f/2.7 - f/3.5 to 1/1600 f/4.0 - f/5.0 to 1/2000 f/5.6 - f/7.1 to 1/2500 f/8.0 to 1/3200 f/3.5 - f/4.5 f/5.0 - f/6.3 f/7.1 - f/8.0 to 1/1600 to 1/2000 to 1/2500 *1 Maximum wide angle *2 Maximum telephoto z The fastest shutter speed for flash synchronization is 1/500 second. The camera automatically resets the shutter speed to 1/500 second if a faster speed is selected. Shutter Speed Display The numbers in the table below indicate the shutter speed in seconds. 1/160 indicates 1/160 second. Also, quote marks indicate the decimal place, so that 0"3 indicates 0.3 second and 2" indicates 2 seconds. 15" 13" 10" 8" 6" 5" 4" 3"2 2"5 2" 1"6 1"3 1" 0"8 0"6 0"5 0"4 0"3 1/4 1/5 1/6 1/8 1/10 1/13 1/15 1/20 1/25 1/30 1/40 1/50 1/60 1/80 1/100 1/125 1/160 1/200 1/250 1/320 1/400 1/500 1/640 1/800 1/1000 1/1250 1/1600 1/2000 1/2500 1/3200 86