Canon TX - Page 20

™ The moving range of the aperture needle inside the
viewfinder changes according to the lens speed. And
the aperture needle will not always move vertically the
full length between the coupling limit marks. Then the
shutter speed should be changed when the aperture
needle cannot be aligned with the meter needle.
A
When
the
shutter
is
set
on
the
high
speed
side,
the
meter
needle
moves
downward.
When
it
is
set
at
a
slower
speed,
the
needle
moves
upward.
When
the
shutter
is
set
at
a
slow
speed
outside
the
meter
coupling
range,
the
red
signal
appears
at
the
bottom
of
the
viewfinder,
and
metering
is
not
possible
even
if
the
f/stop
is
changed.
When
the
red
signal
appears
and
metering
cannot
be
performed,
use
a
flash
unit
or
high-speed
film.
Refer
to
‘‘Coupling
Range
of
Built-in
Exposure Meter’’ on page 22.
m Select a faster shutter soeed when the meter needle
swings all the way up, and a slower speed when it
swings all the way down.
™ Since the shutter speed dial cannot be set at the
intermediate positions, the shutter speed priority method
is recommended when exposure accuracy is a crucial
factor.
™ In photography under counter-light conditions,
reduce film speed by one half, or open up one f/stop,
after light metering.
20
Meter Needle
O)
Aperture te a
Meter ieee
Meter Needle Moving Downward
O
Correct Exposure
O
Red Signal
Outside the Coupling Range