U.M. 2
Table Of Contents
While
view
ing
through
the
view-
finder,
turn
the
focusing ring
until
your
subject comes
into
sharp focus. Depending
on
the
type
of
focus
i
ng
screen
you
have,
there are
two
ways
of
doing
this
.
COMPOSE
AND
FOCUS
A cross-micropri
sm
focusing
system consists
of
a Fresnel
lens,
made
up
of
many
concentric
rings,
with
a
microprism
center
underneath
the
ground
glass.
With
this system,
when
your
subject
is
in focus,
the
image
in
the
microprism
center
will
be sharp.
If
your
subject
is
not
in focus,
the
microprism
will
break
the
image
up
into
many
sma
ll
dots
.
A
split
-image focusing s
ystem
consists
of
a Fresnel lens
with
a
horizontally
divided
screen
under
the
ground
glass.
With
this
system, when
your
camera
is
held
horizontally
and
the
image
is
not
in sharp
focus
, all vertical lines
seen
through
the
viewfinder
will
appear
to
be
divided
into
upper
and
lower
portions
.
To
focus,
simply
adjust
the
focusing ri
ng
until
the
upper
and
lower
portions
are
in
perfect
alignment.
12-