Nikon 1683 Instruction Manual - Page 23

exposure, measurement

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Stop-down exposure measurement This exposure measurement method is used when the diaphragm on the lens does not link with the meter coupling lever on the camera body, such as when a non-AI lens or an extension ring is mounted on the camera. The procedure is as follows: 1) Set the ASA/ ISO number. 2) Compose your picture and·secure subject focus . 3) Press the shutter release button lightly to turn the meter on. 4) Perform exposure measurement, depending on the type of lens used: • Lens with automatic diaphragm Determine the correct exposure while pressi ng the depth- of-field preview lever ® , then take your finger off the lever and depress the shutter release button . • Lens without automatic diaphragm (PC -Nikkor lens) First, determine the correct exposure by adjusting the shutter speed and aperture. Then, focus at full aperture. Shift the lens so that you get the desired composition. Return the aperture setting to the preset posi tion and shoot. • Lens with fixed aperture (Reflex -Nikkor lens) Exposure cannot be changed according to the aperture because in this type of lens, the aperture is fixed. Determine the correct exposure by turning the shutter speed dial. If correct exposure is unobtainable, use an ND (neu tral den sity) filter or change the illumination to adjust the exposure . 23

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Stop
-
down
exposure
measurement
This exposure measurement method
is
used when the dia-
phragm
on
the lens does not link with the meter coupling lever
on the camera body, such as when a non-AI lens or
an
exten-
sion ring
is
mounted
on
the camera. The procedure
is
as follows:
1)
Set the
ASA
/
ISO
number.
2)
Compose your picture and·secure subject focus.
3)
Press the shutter release button lightly to turn the meter
on
.
4) Perform exposure measurement, depending
on
the type of
lens used:
• Lens with automatic diaphragm
Determine the correct exposure while pressi
ng
the depth-
of-field preview lever
® ,
then take your finger off the lever
and depress the
sh
utter release button.
• Lens without automatic d
ia
phragm (
PC
-Nikkor lens)
First, determine the correct exposure
by
adjusting the
shutter speed and aperture. Then, focus at full aperture.
Shift the lens so that you get the desired composition.
Re-
turn the aperture setting to the preset po
si
tion and shoot.
• Lens with fixed aperture (Reflex-Nikkor lens)
Exposure cannot
be
changed according
to
the aperture be-
cause
in
this type of lens, the aperture
is
fixed. Determine
the correct exposure
by
turning the shutter speed dial. If
correct exposure is unobtainable, use
an
ND
(neutral den-
sity) filter or change the illumination
to
adjust the exposure.
23