Canon EOS-1Ds Instruction Manual page 85

Exposure Warnings
•
If the lens' maximum aperture (lowest f/number like f/1.4) blinks, it
indicates underexposure.
Turn the <
display stops blinking.
•
If the lens' minimum aperture (highest f/number like f/22) blinks, it
indicates overexposure. Turn the <
until the aperture display stops blinking.
•
C.Fn-16 enables the safety shift feature. (→p.137)
In the shutter-priority AE mode, if a correct exposure cannot be obtained with any
aperture set by the camera, the camera automatically sets a faster or slower
shutter speed. This feature is called safety shift.
•
C.Fn-06 enables the shutter speed to be set in full-stop or 1/2-stop increments
instead of the standard 1/3-stop increments. (→p.134)
> dial to set a slower shutter speed until the aperture
> dial to set a faster shutter speed
Shutter-Priority AE
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