U.M. 2

o
f /
16
50mm
Depth
-
of-field
1.9m-7.6m
16
'
-25
')
Focu
s
ed
at
3m
110')
If
the
aperture
is closed
down
to
f/
16,
the
picture
will
become
sharp
between
1.
9m
(6')
to
7_
6m
(25
' )
from
the
camera
.
This
range
will
vary
with
the
f/
stop
selected
.
Canon FL lenses
let
you see
the
actual
sharp·
ness
through
the
viewfinder
by
turning
the
manual
aperture
ring
or
the
A-M
ring
.
Although
air
bubbles
may
sometimes
be seen
in a
lens,
they
do
not
affect
the
resolution
power
or
the
sharpness
of
the
picture
.
Lens
Mount
(FL and R Series Lenses)
All Canon FL lenses
which
have
the
FL
mounts
can
be
used
with
the
Canon FT,
except
the
FLP
38mm
F
2.8
.
It
is also
possible
to
attach
and use all
the
R lenses
for
Canonflex
use.
However,
as
the
pre-
set
aperture
mechanism
differs,
pictures
must
be
taken
by
controlling
the
aperture
manually
.
35