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indicator
li
nes
Light output indexes
See 38.
Lens
foc
al length scales
U
se
white index for lenses
in
normal position, red index for lenses
in
reverse position.
ISO film scale
Rep
roduction ratio scales
Use white
lin
es
for lenses
in
normal position.
red lines for lenses
in
reverse I
Len
s selector knob
Fi
lm r
ing
F
il
m
index
Aperturelreproduction ratio dial
BEFORE
USING
THE
SB-21
•
Do
not fire the flash close to anyone's eyes.
• The 58-21 is primarily designed for stereoscopic
shooting.
It
should not
be
used for reproducing docu-
ments with a glossy surface.
• With the Nikon F-
401
s/N4004s·, the 58-21 cannot
be
used for TTL auto flash, or as a slave unit for TTL
multiple flash photography.
•
The
Nikon N4004s is sold exclusively in the U.S.A.
•
To
ensure
proper
protection for the S8
-21,
be sure to leave
the expanded polystyrene in the leatherette case.
USABLE
LENSES
Most lenses with a 52mm or 62mm filter attachment
can be used with the 58-21 . Certain lenses, however,
require special care.
With AF Nikkor lenses, focus manually. AF Micro-
Nikkor 60mm
f/2.8 and AF Micro-Nikkor 105mm f/2.8
can
be
used for both autofocus and manual focus.
However, when the
58
-
21
is used with other AF Nikkor
lenses, performing autofocus may damage the camera .
AF Zoom·Nikkor lenses cannot be used with the
58·21. As the focusing ring
on
these lenses is so light,
they will not remain
in
the focus position wh
en
the
58-21 is attached.
With non·AF zoom lenses:
a.
Focusing a zoom lens with the 58-21 attached
causes the 58-21 main unit to rotate. If neces
sa
ry
,
remove the
58
-2
1 after focusing, then reattach
it
in
the desired position. Also ncte that even slight pre
s-
sure
on
the
58
-2
1 main unit may move the lens
focusing ring resulting
in
an
out-of-focus image.
b. With a zoom len
s,
always perform TTL auto flash
shooting.
In
manual flash
sh
uoting, the proper aper-
ture for the zoom lens cannot
be
read from the
58-21 's exposure calculator dial.
c.
Vignetting may occur
in
the following cases:
• When using Zoom Nikkor 35-70mm
f/3.5,
in
normal
position, at 35mm focal length for shooting a sub-
ject located near the closest focusing distance.
• When using Zoom-Nikkor 35
-1
35
mm f/3
.5-
f/4.5,
in
normal position, for macro focusing.
Lenses shorter than 35mm cannot be used
in
nor·
mal position.
Vignetting may occur when these lenses
are used
in
normal position. Use
in
reverse position.
31