Canon PowerShot A630 PowerShot A640/A630 Camera User Guide Camera User Guide A - Page 46

Shutter Speed Display - wide angle

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z The aperture value and shutter speed change according to the zoom state as follows. Aperture value Shutter Speed (seconds) F2.8 - 3.2 15 - 1/1250 Maximum Wide Angle F3.5 - 4.0 F4.5 F5.0 - 8.0*1 15 - 1/1600 15 - 1/2000 15 - 1/2500 Maximum Telephoto F4.1 - 4.5 F5.0 - 6.3 F7.1 - 8.0*2 15 - 1/1250 15 - 1/1600 15 - 1/2500 *1 In mode, the maximum wide angle aperture may be set as high as F11 in some shooting conditions. *2 In mode, the maximum telephoto aperture may be set as high as F16 in some shooting conditions. 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 z The following shutter speeds can be set. 1/160 indicates 1/160 second. Also, 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 z You can change the combinations of shutter speeds and aperture values without altering the exposure (p. 53). 44

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44
The aperture value and shutter speed change according to
the zoom state as follows.
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 following shutter speeds can be set. 1/160 indicates
1/160 second. Also, 0"3 indicates 0.3 second and 2"
indicates 2 seconds.
You can change the combinations of shutter speeds and
aperture values without altering the exposure (p. 53).
Aperture value
Shutter Speed (seconds)
Maximum
Wide Angle
F2.8 – 3.2
15 – 1/1250
F3.5 – 4.0
15 – 1/1600
F4.5
15 – 1/2000
F5.0 – 8.0*
1
15 – 1/2500
Maximum
Telephoto
F4.1 – 4.5
15 – 1/1250
F5.0 – 6.3
15 – 1/1600
F7.1 – 8.0*
2
15 – 1/2500
*1
In
mode, the maximum wide angle aperture may be set as
high as F11 in some shooting conditions.
*2
In
mode, the maximum telephoto aperture may be set as
high as F16 in some shooting conditions.
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