67
INTERCHANGEABLE LENSES
PENTAX
Asahi Optical had its beginnings
as
a
lens maker and today
is
the
world
's
only
leading lens maker manufacturing a large
format
camera. All
67
interchangeable
lenses are computer-generation optics
designed in the Company's
own
engin-
eering department, manufactured in its
own
factories, and tested in its
own
labo-
ratories. Meticulous quality
control
over
each step
of
the manufacting process as-
sures maximum optical performance
with
every lens in the line.
67
lenses
truly
exist in a class
of
their
own. Giants in
terms
of
quality, precision
and
power
, each features a precision ba-
yonet
mount
which
matches up
with
the
camera perfectly, and each up
through
800mm
focal
length
offers
fully automatic
diaphragm
. In
addition
, each is
of
rugged
and durable construction
for
years
of
.
reliable use.
They
also
incorporate
a
host
of
ingenious features geared
toward
ma x-
imum operating ease.
Another
outstanding feature
of
the
67
lenses
is
Super-Multi-Coating, Pentax's
own
unique 7-layer coating process
which
increases
light
transmission
for
brighter
and crisper images, and also minimizes
flare and
ghost
images.
Please refer
to
the sections
of
these
instructions concerning the lens
or
lenses
you have purchased. Lenses
with
com-
mon characteristics are listed
at
the begin-
ning
of
the various sections
for
con-
venient reference
as
you
thumb
through
the manual. Sections
where
no
listing is
given are general instructions
for
all
lenses; there are also sections devoted
to
special purpose lenses (see " Con-
tents").
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