SPECIAL FOCUSING SITUATIONS
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A. Very
dark
subject
Focus manually with clear matte field , or
for autofocus, focus on another brighter
subject located at same distance, then
use focus lock (pp. 38-43).
Or,
use a
Nikon autofocus Speed light to perform
autofocus with Speedlight's
AF
illuminator.
44
Autofocus operation depends on general lighting, subject contrast and detail, and
other technical factors.
In
rare situations where autofocus
(and
manual focus with
Electronic Rangefinder)
is
not possible,
~
~
blinks telling you to focus manually with
clear matte field
(p.
48) or perform autofocus on another subject located at same
distance.
B.
Low
contrast
subject
Focus manually with clear matte field, or
for autofocus, focus on another subject
at same distance but with more contrast,
then use focus lock (pp. 38-43).
C.
Strongly
backlit
subject
or
bright
subject
with
shiny
surface
such
as
silver
or
aluminum
,
or
scene
in
wh
ich
there
is a
pronounced
difference
in
brightness, such
as
the
light
patterns
created
by
blinds
.
Focus manually with clear matte field.