Pentax A3000 - Focusing Techniques and Viewfinder Diopter Adjustment

FOCUSING
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
cnsp.
N
ote:
lf the maxim
u
m
apertu
re
of
the attached
lens is
smaller than
f
/5.6
(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
41l..
rlQ
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