Cases where autofocus is not acceptable, Very dark subject, Low-contrast subject – Nikon Camera F50 User Manual
Page 54
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CASES WHERE AUTOFOCUS IS NOT ACCEPTABLE
Autofocus operation depends on general lighting, subject contrast and
detail, and other technical points. In those rare situations where autofocus
is not possible, • blinks inside the viewfinder.
• Very dark subject
Focus manually (page 45). Or for
autofocus, focus on another,
brighter subject located at the same
distance, recompose with the
shutter release button lightly
pressed, then shoot.
You can also use the built-in flash,
or an accessory Nikon Speedlight.
• Low-contrast subject
Focus manually (page 45). Or for
autofocus, focus on another subject
at the same distance but with more
contrast, recompose with the
shutter release button lightly
pressed, then shoot.
When the focus brackets are
positioned on the following
subjects/scenes, ignore in
focus • indication and focus
manually:
• Scenes with subjects
located at difFerent
distances
• Bright subjects with a
shiny surface, such as
silver or aluminum
• Strongly backlit subjects
• When using a linear
polarizing niter, or a
special niter, e.g., a soft
focus niter.
(Circular
polarizing filters can be
used for autofocus.)
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