Mamiya ZM User Manual

Exposure
Compensation
The center-weighted
exposure
metering
system
o{
the ZM will
give you
the best
oossible exoosures
in most
of
all shoot-
ing situations
However,
when the
sub-
ject
is situated
against a bright
light
source such
as snow, against
a window,
in the shade
of a backlit
tree, or when
the
subject
is
spotlighted
on stage
against a
dark background,
some expo-
sure
increase
or decrease
may be re-
quired
to bring out
the details of
the
subject
The exposure compensation
may be accomplished
by
either of two
methods described
below
(1)
AE Lock
The Mamiya
ZM is equipped
with a spe-
cial device
for obtaining
correct
expo-
sure
not only
with backlighting,
but
any
other
difficult
lighting situation
as
well.
And this device
is called
the AE
Lock
Set
the shutter speed
dial
to the
"AEL"
(AE
Lock)
position
When the shutter
release
button
is lightly
pressed
the camera
locks
in, or
memorizes,
the exposure
reading until
the finger
is removed
from the
release
button
To use
the AE Lock
function, move
close
to the subject until
the desired
part
of
the subject covers
the center
area of
lhe
viewfinder and
lightly
press
the shut-
ter release button
until the
LED lights.
Hold the shutter
release in this
position
and
move back to
the
place
from
where
you
want
to
photograph,
compose
the
picture
and
press
the
release button to
make the exposure.
The subject
will be
correctly
exposed even
under difficult
light conditions
lf it is
not
oossible
to
move close to
the
subject, determine
the exposure
using
the oalm
of the
hand at a distance
of
about
12"
(30cm),
or
point
the camera
so that sky
or other bright
areas are
not
included
in the viewfinder;
then
lock in
the exposure
value and
make the expo-
sure
as described
above
15
Use of
the exposure compensation dial
is the most effective
method oJ exposure
compensation
when
you
cannot ap-
proach your
subject closely, such
as a
person
slanding against
the snow ac-
ross
the river or spollighted on stage,
erc.
The
dial surrounds
the film rewind
knob
permits
up to
+2EV
(2
flstops)
compen-
sation.
When compensation
is required
it
may
be set
for exposure
increase
at
+1
+2
or exposure decrease
at
-1 -2
by rotating
to the
desired
setting
In-be-
tween settings
may
also
be used. The
amount of
increase or decrease
re-
quired
depends
mainly on experience;
in
the beginning,
it's a
good
idea to take
same
photo
at
two
or
three
settings
to be
on
the safe side
Be sure
to
set
the
dial
back to
"0"
when
exposure compensalion
is not longer
needed to avoid exposure
failures
Exposure
increase
(for
backlit
subject):
When the subject
is situated
against a
bright
background,
exposure
must be in-
creased
to compensate
Set
the dial to
+1
ot
+2 as required.
Exposure decrease
(for
frontlit
subjects):
When
your
subject
is spotlighted
against
a dark
background
such as on stage,
best
results are obtained
by decreasing
the exposure.
Set the dial
to the appro-
priate
-l
or
-2
setting.
to
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Mamiya ZM Specifications

Power

power source	Two 1.5V alkaline-manganese LR44 or two 1.5V silver oxide SR44 batteries
battery type	LR44 (A-76), SR44 (G-13)
battery voltage	1.5V

Camera Specifications

type of camera	35mm single-lens reflex (SLR), aperture priority automatic exposure camera with manual override
picture format	24mm x 36mm
shutter speed range auto	4 sec. to 1/1000 sec.
shutter speed range manual	2 sec. to 1/1000 sec.
film speed range	ASA/ISO 12-3200

Weight and Dimensions

dimensions	140mm x 88mm x 52mm
weight	480 g
tripod socket depth	7/32 in (5.5 mm)