Canon TX - Page 17

Using Built-in Exposure Meter
Canon
TX
provides
the
most
accurate
light
measure-
ment
possible
with
its
unique
TTL
(Through-The-Lens)
system.
The
built-in
exposure
meter,
which
is
of
matching
needle
type,
is
coupled
to
the
ASA
film
speed
scale,
shutter
speed
dial
and
preset
aperture
ring.
The
CdS
photocell
of
the
exposure
meter
is
located
above
the
eyepiece
at
the
rear
of
the
pentagonal
prism.
The
central
emphasis
light
metering
system
enables
accurate
measurement
of
the
main
subject
even
in
counterlight.
=
The
correction
of
the
full
aperture
opening
of
the
lens
is
performed
automatically.
Therefore,
the
operation
does
not
change
regardless
of
the
speed
of
the
lens
used.
An
FL
lens
can
be
used
only
with
stopped-down
metering.
™
Due
to
the
characteristics
of
the
CdS
photocell,
the
movement
of
the
meter
needle
may
occasionally
become
slow,
Owing
to
changes
in
the
degree
of
light.
=
Metering
at
‘‘B’’
on
the
shutter
speed
dial
is
not
possible
with
the
built-in
exposure
meter,
because
“"B”
is
used
for
long
exposures
over
one
second.
=
Always
use
a
lens
hood
when
shooting
against
the
light.
17