Nikon Camera F3AF User Manual
Page 36
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Manual Focus (Using the Matte Portion of the Focusing Screen)
Manual focus is required in the following cases: l) when the
batteries in the DX-1 finder are exhausted, 2) when you are
using a lens which cannot provide autofocus or focus-aid oper
ation, 3) when the focus-impossible warning blinks or lights up
continuously, or 4) when you simply want to focus the lens your
self. With an AF-Nikkor lens, set the A-M switch ® to M; then
turn the lens focusing ring until the image on the matte portion
of the screen inside the viewfinder looks sharp and clear. With
all other lenses, rotate the focusing ring in the normal manner.
Note:
With the A-M switch on the AF-Nikkor iens set at
A, you
cannot
shift the lens distance setting by turning the focusing ring.
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