1573 Custom Function SettingsNC.Fn II -3 Highlight tone priority0: Disable1: EnableImproves the highlight detail. The dynamic range is expanded from thestandard 18% gray to bright highlights. The gradation between the graysand highlights becomes smoother.C.Fn III: Auto focus/DriveC.Fn III -1 Lens drive when AF impossibleIf autofocus is executed, but focus cannot be achieved, the camera caneither keep trying to focus or stop.0: Focus search on1: Focus search offPrevents the camera from becoming grossly out of focus as it attemptsto focus again. Especially convenient with super telephoto lenses whichcan become extremely out of focus.With setting 1, noise in the shadow areas may be slightly more than usual.With setting 1, the settable ISO speed range will be 200 - 1600.Also, the ISO speed displayed on the LCD panel and in the viewfinder, willhave the “0” displayed as a smaller character such as “2oo”. When theimage’s shooting information (p.117) is displayed, the ISO speed’s “0” willalso be displayed as a smaller character.
