Nikon FM2 - Stop-Down Exposure Measurement

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.
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