Справочник Пользователя для Nikon D7100 Body

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Manual Focus
Manual focus is available for lenses that do not support autofocus (non-AF NIKKOR 
lenses) or when the autofocus does not produce the desired results (0 72).
• AF-S lenses: Set the lens focus mode switch to M.
• Other AF lenses: Set the lens focus mode switch (if 
present) and camera focus-mode selector to M.
• Manual focus lenses: Set the camera focus-mode 
selector to M.
To focus manually, adjust the lens focus ring until the 
image displayed on the clear matte field in the 
viewfinder is in focus. Photographs can be taken at 
any time, even when the image is not in focus.
❚❚The Electronic Rangefinder
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 
51 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 72, the in-
focus indicator may sometimes be displayed when the subject is not in focus; confirm 
focus in the viewfinder before shooting.
D
AF Lenses That Are Not AF-S Lenses
Except when using an AF-S lens, do not use AF lenses 
with the lens focus mode switch set to M and the 
camera focus-mode selector set to AF. Failure to 
observe this precaution could damage the camera or 
lens.
A
Focal Plane Position
To determine the distance between your subject and the 
camera, measure from the focal plane mark (E) on the 
camera body. The distance between the lens mounting 
flange and the focal plane is 46.5 mm (1.83 in.).
Focus-mode selector
Focal plane mark
 46.5 mm