Nikon PC Nikkor 35mm f/2.8 User manual

PC-Nikkor
35mm
f/2.8
Nikon INSTRUCTION MANUAL

NOMENCLATURE
Preset ring alignment index
Preset ring
Aperture ring
Distance scale
Depth-of-field indicators
In frared index
Distance scale index
2

Apertu re scale
Aperture ring alignment index
Focusing ring
Shift scale
Shift knob
Maximum permissible shift value index
Maximum permissible shift values
Mounti index
3

CONTENTS
Foreword ........ ...... .. .4
Mou nting the lens .......... .5
S
etting the aperture . . .. -. . .... 6
Stop-down measurement. .. .. -.7
Focusing ............ ... .. 8
Depth of field .. ...... .. ... 9
Shift and rotation movement. .. 10
Maximum permissible shift ... 11
Framing ................. 12
Panoramas .. .... ..... .... 16
Depth of field tables ... ..... 20
Close-up tables ... ...... ... 22
Features / specifications ... . .. . 23
4
FOREWORD
The PC -Nikk or 35mm f/2.8 is a retrofocus-type
perspective control (PC) lens with an optical
construction of 7 el ements in 7 groups. The
im age circle of th is lens is wider than regular
35mm wideangle lenses providing a covering
angle
of 78 °; thus image quality is insured even
when
the lens is shifted. The lens barrel can be
shifted up
to 11 mm off-axis and rotated 360
0
with click-stops every 30
0 for
complete image
control. The PC-Ni kkor is ideally suited for
architectural and commercial photography,
enabling the photographer to properly frame
the subj ect without tilting or angling the
camera - and the photographer has the added
convenience of thru-the-lens viewing and meter-
ing
for greater ease of operation. It is also
possible
to take panoramic shots .
If used with a Nikon
camera having inter-
changeable focusing screens,
the Type E or E2
with its etched horizontal and vertical Iines is
- recommended. All aberrations have been well
corrected, especially coma and curvature of
field, so that image quality is truly outstanding.

MOUNTING THE LENS
The PC-Nikkor 35mm fj2.8 mounts on all Nikon and
Nikkormat cameras. To mount the lens, position it
in
the camera's bayonet mount so that the mounting
index dots on the
lens and the camera are aligned.
Then, grasp the milled surface of the mounting ring
and twist the lens counterclockwise until it clicks and
locks into place.
(See "Stop-Down Measurement" on
page 6 for metering procedures.)
To remove the lens from the camera body, press the
lens release button on the camera and, keeping the
button depressed, twist the lens clockwise.
To
use the PC-Nikkor as a normal 35mm lens without
using the perspective control feature, rotate the lens
barrel so ttiat the shift scale faces up. Then, if neces-
sary, turn the milled shift knob until the distance scale
index dot is aligned with the shift scale index dot.
5

SETTING THE APERTURE
6
The PC-Nikkor is provided with a manual diaphragm
operable from f/2.8 to f/32 and a spring-loaded preset
ring to
aid in setting the diaphragm quickly to the
shooting aperture; a total ofeight click-stop positions,
at full -stop intervals, makes for precise placement of
the preset
ring. Also, identical sets of f/numbers are
engraved
on opposite sides of the front rim of the lens
to facilitate operation when the lens is used inverted.
To set the aperture, the following procedure
is recom-
mended:
Press the preset ring toward the camera body
and turn it until the f/number setting corresponding
to the desired shooting aperture
is aligned with the
ring's index dot; then release the ring and it
will spring
outward and lock
in place. Note that the preset ring,
once set, limits the travel of the aperture ring so th at
the diaphragm can
be set easily and quickly from the
full aperture viewing position to the shooting aperture
without the need for checking the scale during stop-
down operation.

Stopped-Down Measurement
The PC-Nikkor lens must be stopped down to deter-
mine
the exposure when used on TTL cameras.
Because
the finder image progressively becomes darker
as the lens is stopped down, you should focus first
before taking a
meter reading.
It
is important to note that exposure measurement
must be performed before the lens is shifted; should
measurement be performed after shifting, erroneous
meter readings may occur . With automatic exposure
cameras, such
as the Nikon F3, FE2 or FE use the
camera's memory lock to retain the correct shutter
speed before shifting the lens for the final picture
composition. Since
the Nikon EM doesn't have a
memory lock, the correct exposure cannot be obtain-
ed while shifting.
7

FOCUSING
8
The aperture and preset rings of the PC-Nikkor enable
focusing at
full aperture for the brightest viewfinder
image, with rapid setting of the diaphragm to the pre-
set shooting aperture.
Having set the preset ring to the
desired aperture setting, focus as follows: Turn the
aperture ring to the f/2.8 setting to open the diaphragm
fully for focusing (photo 1) ; then turn the focusing
ring until the image on the focusing screen is in sharp
focus (photo 2). Before releasing the shutter, turn the
aperture ring until It contacts the preset ring and can
no longer be turned-the diaphragm is now at the pre-
set shoot ing aperture (photo 3).
Note : The Type E2 focusing screen is highly recommended
for use with FA/ FE2 / FM3 Nikon cameras and the Type E for
use with F/ F2/F3/FE Nikon cameras. The vertical and hori-
zo ntal lines etched on the screen help you to properly align
the ca mera for proper perspective correction of the image.

Depth of Field
Depth of field refers to the zone of acceptable focus
extend
in g in front of and behind the plane of sharpest
focus. Within this zone, image blur
is negligible and
everything can
be considered as being in sharp focus.
Ta observe the depth
of field with the PC-N ikkor lens,
it
is necessary to manually set the diaphragm to the
required shooting apertur
e; for procedures, refer to
"Setting the Aperture" on page
6.
Depth of field can also be determined by reading the
color-coded depth-of-field indicators engraved on the
lens barrel opposite the distance
sca le. Ea ch pair of
colored lin es corresponds to an f/number of the same
color engraved on the lensfront
rim_ To find the depth
of field at a particular aperture, focus the lens on the
subject and then check the numbers on the distance
scale opposite the colored
lin es that match the color
of the preset shooting aperture setting.
Wh en in doubt about depth of fie ld for a critical
shooting situatio
n, refer to the tables on page 20 and
21 of this instruction manual.
Recommended Focusing Screens
Various interchangeable focusing screens are
available for F3- and F2-series cameras to suit
any ty pe of lens or pi ct ure -taking situation.
Those which are recommended for use with
your lens are li ste d below. For screens used
with Nikon ca meras other than F3- a nd F2-
series
cameras (e.g., Nikon FA, FE2, FM2 a nd
FE), refer to the column for F3-series cameras.
F
or the K2, B2 and E2 focusing screens, refer
to the columns on the K, B a nd E screens,
respectively.
For det a il s, al so refer to the spe-
cific focusing
sc reen's instruction s heet.
o = Excellent focusing
., = Acceptable focusing
The split-image rangefinder , micro prism
or cr os s- hair area is dim _ Focus on the
surrounding matte area.
0= Exposure measurement via stop-down
m et hod
Blank means
not usable.
9

SHIFT AND ROTATION MOVEMENT
10
The front part of the PC-Nikkor shifts up to 11 mm
from
the center in a plane parallel to the film, and
the whole lens mount rotates through a full 360
0.
By combining the parallel shift with the rotation
movement of the lens, an infinite variety of adjust-
ments can be made.
To shift the lens, turn the knurled shift knob. The
knob should always be turned so that it is facing away
from the direction
in which the lens is to be shifted.
The shift scale shows the degree of shift in millimeters.
When the
shift scale is facing upward, the lens can be
shifted
11 mm to the right of center. In order to shift
the lens in other directions, simply rotate the whole
lens mount, stopping at one of the 12 click-stop
settings provided
at 30
0 intervals,
or choosing a
desired
intermediate position. By combining these two
movements, the lens can be sh ifted up to 11 mm from
the center in any direction.