Pentax Camera - FOCUSING; Focusing Methods and Adjustment

You
can
focus
in three
ways,
with the split-image,
microprism,
and/or matte f
ield.
To
focus
using
the
split-image,
turn
the'focusing ring
until
the
two
images
in the split-image
circle
at the
center
of
the
focusing
screen are
perfectly
aligned. When
using the
microprism
collar, focus
until
the
glitter
disappears
from
inside
the
collar. With
the matte
field,
focus
until
the image
on the
matte
field
appears
sharp and
crisp.
Note: lf the maximum
aperture
of the attached
f ens is smaller
than
t15.6
(for
example, f/8
as in
the case
of a
long telephoto),
it
is
easier
to
focus
on the matte field
since the
split-image
and
microprism
collar areas
become
much
too
dark
for
satisfactory focusi
ng.
Diopter
adjustment
for
viewfinder
eyepiece
People
who
wear
eyeglasses
due
to myopia,
hypermetropia
or
presbyopia,
sometimes
f
ind it
difficult to
focus
while
wearing
their
glasses.
In
this
case, use
the accessory
diopter
correction
lenses
M
(See
page
55).
21
o
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