Nikon N70 AF Instruction Manual page 38

SPECIAL FOCUSING SITUATIONS
Autofocus operation depends on general lighting, subject contrast and detail,
I
[OJ:
~
:
~ H
P 125 FS.6
I
and other technical factors. In rare situations where autofocus (and manual
11 •• _ •• , •• . . . . . . . . . . . . . . . .
focus with Electronic Rangefinder) is not possible,
~ ~
blinks telling you to
focus manually with clear matte field (p. 42) or perform autofocus on another
subject located at same distance.
A. Very dark subject
Focus manually with clear matte field , or
for Single Servo AF, focus on another
brighter subject located at same
distance, lock focus, then recompose
(pp. 36-37). Or, use a Nikon AF
Speedlight (S8-28, S8-27, S8-26,
S8-25, S8-23, S8-22 or S8-20) to
perform autofocus with SpeedJight's AF
illuminator.
38
B. Low-contrast subject
Focus manually with clear matte field , or
for Single Servo AF, focus on another
subject at same distance but with more
contrast, lock focus, then recompose
(pp. 36-37).
C. Strongly backlit subject or bright
subject with shiny surface such as
silver or aluminum, or scene in which
there is a pronounced difference in
brightness.
Focus manually with clear matte field.