Ai servo af, Ai servo af -3 – Kodak DCS500 User Manual
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The shutter will not release if the in-focus indicator is blinking. Try refocusing on an 
alternate subject with higher contrast at approximately the same distance, or use 
manual focusing. (Refer to the section on “Difficult Subjects for Autofocus” later in 
this chapter).
AI Servo AF
In Evaluative Metering mode, the 
shutter speed and aperture value are 
determined at this time, and by 
keeping the Shutter button pressed 
halfway, the focus and exposure 
settings remain locked, allowing 
you to recompose the picture as 
desired. 
Use this mode when capturing 
images of moving subjects. The lens 
focuses the subject continuously 
while the Shutter button is pressed 
halfway. AI Servo’s predictive focus 
control can track subjects moving 
toward or away from the camera. 
Exposure is determined 
immediately before the shutter is 
released.
In AI Servo AF mode, the 
viewfinder’s in-focus indicator does 
not light up even when the subject is 
in focus.
The in-focus indicator blinks if the 
subject cannot be focused.
Focusing points In-focus indicator
