Canon POWERSHOT G9 User Manual page 97

Shooting Using the Mode Dial I 95
The nature of CCDs is such that noise in the recorded imag e
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-quaUty images (Nevertheless, a certain amount
of processing time maY be required before the next image can
be shot).
e he aperture value and shutter speed change according to
the zoom state as follows.
Aperture Value Shutter Speed (seconds)
f/2.8 15 to 1/1600
Maximum Wide Angle f/3.2 - 3.5 15 to 1/2000
f/4.0 - 8.0* 15 to 1/2500
f/4.8 15 to 1/1600
Maximum Telephoto f/5.6 - 6.3 15 to 1/2000
f/7.1 - 8.0" 15 to 1/2500
*
Dependingon the
shooting
conditions, t he
aperture
valuecan increaseto
f/11
in
_.
• The fastest shutter speed for built-in flash synchronization is
1/500 second. The camera automatically resets the shutter
speed to 1/500 second or slower, 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"52" 1"6 1"3 1"0"80"60"50"4
0"3 1/4 1/5 1/6 1t8 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
• You can change the combinations of shutter speeds and
aperture values without altering the exposure (p. 129).