The
AE-l
PROGRAM's viewfinder
is
especially
bright
to
facilitate viewing and focusing. It dis-
plays only the necessary information, using a
Light-Emitting Diode
(LED)
system
of
illumina-
tion. The degree
of
LED
illumination changes
in
four stages depending on the brightness
of
the
subject. When the subject
is
brighter, the
LED
brightness
is
slightly higher; it
is
slightly lower
with
a darker subject. Thus the
LED
maintains
an
almost consistent degree
of
brightness
to
the
human eye.
35
Correct exposure
is
provided by the Central
Emphasis Averaging System, which reads the
entire viewing area
with
emphasis
on
the central
portion where the subject
is
most
likely
to
be
placed. Since a new type
of
split-image range-
finder
is
used
in
the center
of
the viewfinder, the
brightness
of
the split-image rarely changes
even when using a
lens whose maximum aper-
ture
is
f/ 5.6 or smaller.
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