Yashica MAT-LM - Depth of Field

DEPTH.OF.FIELD
When you
focus
the comero
on
o
subiect
there
is o certoin
distonce rn fronl
ond
bock
of the
subiect
within
which other
obiect
will
olso
oppeor
shorp. This
is
know
os
the
"Depth-of-Field",
ond
it vories
with
the
lens
operture.
The
smolfer
the operture
the
greoter
the
Depth-of
Field; it is
much lorger ol f
222
thon ot
f
r3.5.
At
the focusing
knob
is o
scole
which
will
indicote
the Depth-of
Field
when the
comero
is focused
ot vorious
distonces.
You
will
notice
thot on
either side of
the
f
: 3.5 figure
is o
similor
set
of
numbers
which
represent
lens opertures.
When
the comero
is focused
on
your
subiect
look for
the operture you
ore
using on
either
side
of
the
scole
to determine the Depth-of-Field.
Thus, if
the
comero
is focused
ot
l0 feet
ond
the
lens operture
is
f ,
8
the
Depth-of-Fielcf
(oreo
in
which
oll
obiect
ore
shorp) is from
obout 8
ft.
to
l3
ft.
You
con
o lso
use
t
he'dept
h-of
-field
sco le
to
use
your
Yoshico
os o
fixed-focus
comero.
In
this cose
set
the infinity
mork
gn
the
distonce
scole
opposite
the lens
operture
being
used.
lf
the
operture
is f
r
8
you
will notice
thot
o
ll
obiects from obo
vt
25 feet
to infinity
will be
s
ho
rp.
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