Pentax 6x7 Manual page 3

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").