13En Focusing (Fig. A)Set your camera’s focus mode selector accordingto the chart below:Autofocus with manual override (M/A mode)a Set the lens focus mode switch ! to M/A.b Autofocus is enabled, but autofocus operationcan be overridden by rotating the separatefocus ring 5 while pressing the shutter-releasebutton halfway, or by pressing the AF-ONbutton on the camera body of cameras soequipped.c Press the shutter-release button halfway or theAF-ON button once again to cancel manualfocus and resume autofocus.Cameras Camerafocus modeLens’ focus mode switchM/A MD3-Series, D700, D2-Series, D1-Series, D300, D200, D100, D90, D80,D70-Series, D60, D50, D40-Series, F6, F5, F4-Series, F100, F90X/N90s*,F90-Series/N90*, F80-Series/N80-Series*, F75-Series/N75-Series*,F70-Series/N70*, F65-Series/N65-Series*, Pronea 600i/6i*, Pronea SAF (C/S) Autofocus withmanual override Manual focus(Focus assist is available.)MF Manual focus(Focus assist is available.)F60-Series/N60*, F55-Series/N55-Series*, F50-Series/N50*,F-801s/N8008s*, F-801/N8008*, F-601 M/N6000*, F-401x/N5005*,F-401s/N4004s*, F-401/N4004*AF (C/S)MFManual focus(Focus assist is available,except with the F-601M/N6000*.)* Sold exclusively in the USA Depth of field• Approximate depth of field can be determined bychecking the depth of field scale.• I f your camera has a depth-of field preview (stop-down) button or lever, depth of field can bepreviewed through the camera viewfinder.• For more information, see p. 98.Depth-of-fieldindicators Distanceindex line Setting the apertureUse the camera to adjust the aperture setting.