Canon PowerShot G10 User Manual
Page 101
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Some aperture values may not be available with certain zoom
positions
.
z
The maximum shutter speed with synchronized flash is 1/500
second*. Therefore, even if an aperture value is preset, the
aperture value may automatically be reset to match the
synchronized flash speed.
* When using an external flash, see
Aperture Value Display
z
The larger the aperture value, the smaller the lens opening,
allowing less light to enter the camera.
z
You can change the combinations of aperture values and
shutter speeds without altering the exposure
.
F2.8 F3.2 F3.5 F4.0 F4.5 F5.0 F5.6 F6.3 F7.1 F8.0
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