Canon FTb - Fixing Mirror Upwards

Fixing
Mirror
Upwards
In
performing photomicrography,
the Canon
FTb can be
operated with
the mirror
locked
in
an upward
position
after
the
picture
has
been composed in the viewfinder, in order to
eliminate
mirror vibration.
To lock
the
mirror in an
upward
position, push
down the
stopped-down
f unctioning lever
and the lever lock to
"
M
".
The aperture is
now stopped-down
and controlled manually.
The mirror can be locked
independently
from film
advance
and
shutter speed
operations.
When the mirror is locked
in
an
upward
position,
SLR
view-
ing is not
possible,
and distance must be estimated by eye.
When
the
mirror is
locked,
always
keep
the lens covered.
The film
will
sometimes become foggy
if
the lens cap is
not
attached.
r
After the mirror lock device has been
used,
be
sure to
return
the mirror lock lever to
its
original
position.
Failure
to do this
will
result
in
inaccurate focusing.
r
When Canon
Lens
FL 19mm F
3.5
is used,
the
mirror
should be
fixed,
and
combined usage
of
the
exclusive
view-
finder
to
this lens
becomes necessary.
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