159d: Program AEIf the “30"” shutter speed and the lower f/numberblink, it indicates underexposure.Increase the ISO speed or use flash.If the “8000” shutter speed and the higher f/numberblink, it indicates overexposure.Lower the ISO speed or use an ND filter (soldseparately) to reduce the amount of light entering thelens.Differences Between <d> and <A> ModesIn the <A> mode, many functions, such as the AF operation and meteringmode, are set automatically to prevent spoiled shots. The functions you canset are limited. With <d> mode, only the shutter speed and aperture are setautomatically. You can freely set the AF operation, metering mode, andother functions (p.404).Program ShiftIn the Program AE mode, you can freely change the shutter speed andaperture combination (Program) set automatically by the camera whilemaintaining the same exposure. This is called Program shift.To shift the program, press the shutter button halfway, then turn the<6> dial until the desired shutter speed or aperture is displayed.Program shift will be canceled automatically when the metering timer(0) ends (exposure setting display turns off).Program shift cannot be used with flash.
