Operation Manual

MEASUR
ING.LEVEL
ADJUSTER
-0
lstop
0
+O.lstop
*0.2stop
-f
0 ?
qtnn
+0.4stop
*0.5stop
+0.6stop
-0
2qfnn
-f)
?ctnn
-
0. 4
stop
-
0 6qfnn
-
0 .6
stop
-0.7stop
-0
Bstop
+10.7stop
.
Graduated marks
indicate 0.2
EV
changes.
The measuring
level of
the
Flash Meter lV is
adjusted
by
Minolta to its standard.
Further
adjust'
ment of this setting
(from
+0.7
to
-0.8
EV)
is
possible
when calibrating several
meters
to a
single standard.
To
adjust
the
measuring
level, insert a screwdriver
into
the slot on the
measuring-level
adjuster's
screw
and turn the screw
to change its setting.
Turning
the
screw
clockwise
produces
a
higher reading; turning
counterclockwise
produces
a
lower
reading.
NOTE
o
The
measuring
level
should
only be adjusted after
determining
that the standard
setting
will not
pro-
duce
the
desired results.
STANDARD
ACCESSOR
IES
Spherical
diffuser
This diffuser is supplied
with the
Flash
Meter lV
and is
used to make incident-liQht
measurements
of
flash or
continuous
light.
Reflected-l i
ght
attachment
lT
-21
For
taking
reflected-light
measurements
of
flash
and/or continuous
light,
this attachment
can
be used.
It has
a
40o
angle
of acceptance that
corresponds to
the
field
of
view
of most normal lenses.
OPTIONAL
ACCESSORIES
Viewfinder
5"
This
accessory
attaches
to the
receptor head
an
has
an angle
of
acceptance
of 5".
When
attached,
it is
possible
to take
precise
reflected-light
measurements
of both
flash
and
ambient
light.
Viewfinder
10" ll
The
Viewfinder 10o
ll can
also
be
used for
taking
spot
measurements.
Precise
readings are
possible
by
positioning
the
circle in its
viewfinder on
the area
to
be measured.
Flat diffuser
By attaching
this
diffuser, the
Flash Meter lV can
be
used
to
measure
the
lighting
ratio
between main
and
auxilary
light sources
for
either
flash
or contin-
uous
light sources.
llluminance
value for
continuous
light
sources and
guide
number of electronic
flash
units
or
M-class flash bulbs
can
also
be determined.
Mini Receptor
This
remote ceceptor
plugs
into the socket
on the
side
of the
Flash Meter lV's receptor
head
and
is
used
to
measure incident and/or
continuous light
in
otherwise inaccessible
positions.
lt
is
particularly
useful
for close-up and
macro
photography.
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