Contax 159MM - Focusing Operation; Using the Split-Image Spot; Using the Microprism;Matte Field

Focusing
,s
done with
a split-image
focusing
center,
microprism
collar
and
a surrounding
matter
screen.
When
using
the
split-image
spot to focus,
turn
the
focusing
ring
until the
top
and
bottom halves
of the image
merge.
lf the
image
is
out
of focus,
the
two
halves
will not
merge.
To
focus
with
the microprism
collar,
turn
the focusing
ring
until the
glittering
effect
disappears
from
the
collar
area,
30
giving
you
a
sharp,
clear image
when in
focus.
To focus
with the
outer
matte
field,
turn
the
focusing
ring
until
the
image
appears
sharp
and
clear,
free
of
any foggy
effect.
'
when
using long
focal-length
lenses,
or lenses
with
a
relatively
small maximum
aperture
(f4
or
srower),
or
when
performing
close-up
photography
at high
magnification,
the
microprism
collar
and
split-image
spot may
become
dark,
making
focusing
difficult.
ln this
case,
focus
using
the
outer
matte
field.
E
p
b
o
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