Exposure compensation for close-up
photography
When
the
bellow
s is ex
tended
for
close·up
photography
and
the
distance
between
the
lens and
the
film
plane
i
ncreases
beyond
normal
, an
increase
in ex
posure
is
required
.
To
adjust
the
exposure, use
the
exposure
compensation
scale
appearing
on
the
distance
scale
(7).
The
exposure
compensation
scale
shows
an
index
for
each lens
marked
in
1/ 2
steps
.
Focus on
the
subject
and
note
the
pattern
of
the
scale
where
the
distance
scale
for
the
lens
meets
the
distance
scale
graduation
plate
edge.
The
compensating
value
is
shown
below
.
Read
the
compensating
value
of
the
same
pattern,
and
increase
the
exposure
accordingly
.
For
example
,
when
the
scale
shows
the
pattern
as
shown
in
the
photo
when
focused
on a
certain
subject
, exposure needs
to
be
increased
by
one
step
.
If
your
exposure
meter
shows
the
exposure
setting
of
1/
60
sec.
at
f /
16
,
the
setting
must
be
adjusted
to
1/
30
sec.
at
f /
16
or
to
1/
60
sec.
at
f /
1l.
One
exposure
step
corresponds
to
one
step
on
the
aperture
scale
or
one
step
on
the
shutter
speed scale.
For
0.5
step
compensation
, use
the
in·between
aperture
scale
s
ett
i
ngs
.
When
using
the
CdS
finder
for
the
Mamiya
RB,
exposure
need
not
be
compensated,
since
the
meter
reads
actual
ex·
posure
directly
.
NOTE :
When using
th
e 50mm and 65mm lenses closer than 3l{ ft
(1
meter
)
it is necessary to use a
lens aperture
of
f/
16
,
or
smaller,
in
order
to
obt
a
in
satisfactory lens
performance
.
•
Using
a
Tripod
For maximum picture sharpness the use of a sturdy
tripod
is
re-
commended
. Insert the
tripod
screw
into the tripod
socket
(23)
at the bottom of the camera.
When a tripod with a 3/ 8 inch tripod
screw
is used,
remove
the
inner
socket
by turning the
tripod
socket
counterc
lockwise
with a
coin or
similar disk inserted
in
the slots of the socket. The standard
tripod
has a 1/ 4 inch
tripod
screw
and can be used for this
camera
in
conjunction with the inner
tripod
socket
.
Tripod Mounting
Base
The tripod mounting base (22) at the
bottom
of the camera is
for
attaching a quick shoe.
If
you
keep
a
quick
shoe
on
your
tripod
head
, the camera can be
quickly
and easily mounted
on
it.
25
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