74Taking Photographs—FocusManual FocusManual focus is available for lenses that do notsupport autofocus (non-AF Nikkor lenses) orwhen autofocus does not produce the desiredre sults ( 73). To focus manually, set the focus-mode selector to M and adjust the lens focusingring until the image displayed on the clear mattefi eld in the viewfinder is in focus. Photo graphscan be taken at any time, even when the imageis not in focus.The Electronic Range FinderIf the lens has a maximum aperture of f/5.6 orfaster, the viewfi nder focus indicator can be usedto con firm whether the subject in the selected fo-cus area is in focus. After positioning the subjectin the active focus area, press the shutter-releasebutton halfway and rotate the lens focusing ringuntil the in-fo cus indicator (●) is dis played.VVA-M Selection/Autofocus with Manual PriorityWhen using a lens that offers A-M selection, select M when focusing manually. Withlenses that support M/A (autofocus with manual priority), focus can be adjusted man-u ally with the lens set to M or M/A. See the documentation provided with your lensfor details.Focal Plane PositionTo determine the distance between your subject andthe camera, measure from the focal plane mark on thecamera body. The distance between the lens mountingfl ange and the focal plane is 46.5 mm (1.83˝).
