Nikon D3000 D3000 User's Manual - Page 67

❚❚ The Electronic Rangefinder If the lens has a maximum aperture of f/5.6 or faster, the viewfinder focus indicator can be used to confirm whether the subject in the selected focus point is in focus (the focus point can be selected from any of the 11 focus points). After positioning the subject in the selected focus point, press the shutter-release button halfway and rotate the lens focus ring until the in-focus indicator (I) is displayed. Note that with the subjects listed on page 42, the in-focus indicator may sometimes be displayed when the subject is not in focus; confirm focus in the viewfinder before shooting. A Focal Plane Position To determine the distance between your subject and the camera, measure from the focal plane mark on the camera body. The distance between the lens mounting flange and the focal plane is 46.5 mm (1.83 in.). 46.5mm z Focal plane mark A The Exposure Indicator If desired, the exposure indicator can be used to determine whether the focus point for manual focus is in front of or behind the subject (0 132). 49