Nikon FG Instruction Manual page 50

For nature lovers, scientists, even general use, close-
up photography provides the means to see the world
in all its smallest details. The following are available
for close-up work at a shorter distance than that of
Hie index engraved on the lens:
(1) Close-up lenses- No. 0, No.1, No.2, No. 3T,
No.4T, No. 5Tand No. 6T lenses; direct mounting;
normal exposure method.
(2) Auto rings-PK-11, PK-12 and PK-13; mount be-
tween lens and camera body; usable only in com-
bination with AI lenses; normal exposure method.
(3) Bellows Focusing Attachment PB-6-Use the
aperture control lever of the PB-6 for stop-down
measurement as follows: on A, release the shutter
button after turning the PB-6's aperture control
lever; on manual, turn the aperture control of the
PB-6 and turn either the flstop or shutter dial until
only the steady LED begins to light, indicating
correct exposure for manual mode. Note that P
(Program) mode is unusable. Shooting magnifi-
cation is successively changeable by the expan-
sion and contraction of the bellows.
Any combination of Nos. 1, 2, and 3 is possible.
50
(4) Micro-Nikkor 55mm fl2.8, 105mm
f/2.8
and
200mm fl4 (IF)-When using AI-type Micro-Nikkor
lenses at a shooting magnification range from
1/2
to
1/1,
use the Auto Ring PK-13 or Teleconverter
TC-201 (in the case of the TC-201, usable from
infinity to 1/1 magnification) with the 55mm f/2.8;
use the PN-11 with the 105mm f/2.8. In the case
of the 200mm
f/4
(IF), the Teleconverter TC-301 is
recommended for photos with a wide magnification
range from infinity to
1/1.
Because both the auto
rings and teleconverters have automatic aperture
coupling devices, they enable automatic exposure
control when combined with Micro-Nikkor lenses.
For close-up photography with these accessories, it
is recommended to shoot at A or manual modes since
depth of field is generally shallow and you must stop
your aperture down as much as possible to get the
greatest area of clear focus. In focusing, it is essen-
tial to focus on the matte field. To measure the exact
distance between the subject and the film plane, use
the film plane indicator.