Mamiya RB67 Pro-S Manual de usuario
Accurate exposure can be obtained quite simply by using a
through-the-lens system CdS exposure meter and observing an enlarged
finder image by installing this finder on the Mamiya
RB67
Names of Parts
1. Visibility adjusting ring 6. Shutter speed dial
2. Battery chamber cover 7. Aperture scale
3. Index of lens speed 8. Film speed set dial
4. Scale of lens speed 9. DIN scale window
5. Light sensitive section set lever 10. ASA scale window
Operating Method
1. Inserting two silver batteries
Remove the battery chamber cover (2) by
turning it counterclockwise, and insert two silver
batteries in the battery chamber. Always wipe both
battery poles with a dry cloth and insert them by
facing the plus( +) side of both batteries toward the
operator. Finally, screw in the battery chamber cover
tightly.
2. Attaching the finder to the camera
The attaching method is the same as that of the
camera focusing hood.
When turning the visibility adjusting ring (1 ),
visibility is changed according to up-and- motion of
the cylinder. Use the finder by adjusting visibility to
obtain the clearest image.
The eyecup is a folding type that you pull up
prior to using it.
3. Setting the speed on the dial of the lens to be used
Turn the shutter speed dial (6)while slightly
pulling it out, then set the same value opposite the
index (3) as the speed(f/number) of the lens to be
used.
2
For instance, when using the 127mm f/3.8 or 90mm
f/3.8. set 3.8 of the lens speed scale (4) opposite the index
(3)
4. Setting the speed of film to be used with the film speed
set dial
Turn the film speed set dial (8) while slightly pulling it
out. then set the film speed number (ASA or DIN) of the film
to be used opposite the index of either scale window (10) or
(9).
5. Setting the CdS light sensitive section in the center of the
finder field
Move the light-sensitive section set lever (5) until it
stops with a click and the word "ON" appears. Now the
light-sensitive section is set in the center of the finder, the
meter switch is on, and the needle is actuated.
6. Setting the exposure meter needle
On looking into the finder, the exposure meter needle
and an index mark (b) can be observed in the upper, left
portion While turning the shutter speed dial (6), set the
exposure meter needle in the center of this index.
-3-
7. Reading scale values on the dial and setting it on the
lens
Read and choose any combined values of shutter
speed dial scale (6) and aperture scale (7), and proceed
with photographing after setting the lens shutter speed and
aperture
Important Points on Using the Finder
1. Since a through-the-lens system is adopted on the exposure meter of this US Finder,
exposure compensation when extending a lens and correction through exposure factor
when using a filter are unnecessary. However, since an appropriate exposure value
delicately varies according to the amount a lens is extended, always focus first to ensure the
correct measurement.
2. When photometering, always set the CdS light sensitive section in the center of the finder.
To measure other than the image center, move the entire camera and measure that
portion, setting the light sensitive section on it.
3. When photometering is not performed, always return the light sensitive
section set lever (5) to the original position where the word "OFF" is visible,
preventing useless drain on the batteries.
4. To perform correct photometering, put one eye closely to the eyecup to prevent light from
entering the finder through the eyepiece.
-4-
5. Designed for installation on the Mamiya RB67, this finder cannot be used as an
independent exposure meter.
Regarding the Silver Battery
1. Plus(+)and minus(-)poles of the silver battery are indicated
in the diagram, so carefully check the direction of pole to
be inserted.
2. When replacing batteries, purchase the following:
EVEREADY S-76. MALLORY MS-76E. RAY-O-VAC RS-76G
or UCAR S-76 (Voltage: 1.5V).
Although their shapes are the same, do NOT use
mercury batteries; these are only 1.3V, preventing correct
exposure from being obtained.
3. Remove the batteries when the US Finder is not to be
used for a long period of time.
4. If silver batteries are subjected to high temperature, they
may explode. Never discard them
into a fire.
Printed in Japan
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