Canon TX - Depth-Of-Field Scale

Depth-of-Field Scale
The
depth
of
the
field
scale
indicates
the
distances
from
the
camera
in
which
the
photograph’s
subjects
will
be
in
sharp
focus
on
the
film.
For
example,
if
the
lens
used
is
50mm
and
the
subject
has
been
focused
at
a
distance
of
3m
(10’),
with
an
f/8
value,
read
off
from
the
scale
on
either
side
of
the
indicator
(orange
line).
The
depth-
of-field
is
from
approximately
2.3m
(8’)
to
4.3m
(14’).
If
the
aperture
is
closed
down
to
f/16,
the
picutre
will
become
sharp
between
1.9m
(6’)
to
7.6m
(25’)
from
the
camera.
Basically,
the
smaller
the
f/stop,
the
greater
the
distance
of
the
subject
from
the
camera
or
the
shorter
the
lens
focal
length,
the
deeper
will
be
the
depth
of
the
field.On
the
other
hand,
the
larger
the
f/stop,
the
nearer
the
subject
to
the
camera
or
the
longer
the
lens
focal
length,
the
shallower-will
be
the
depth
of
the
field.
m™
In
the
case
of
Canon
FD
lenses,
you
can
see
the
actual
sharpness
through
the
viewfinder
by
pressing
the
stopped-down
lever.
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