Minolta Auto Meter IV F User manual

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H
Hv
MINOLTN
O 1991 Minolta Camera Co., Ltd. under the Berne
ConventionandUniversal
Copyright
Convention
9222-8054-18 IDFAP
I ftinteC inJapan
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MINOLTN
AUTO
E tNsTRUcTtoN
MANUAL
[r.l
voorD'EMPLoI

The MinoltaAuto Meter lV F's versatile
operationwill help
simplify
yourmost
critical
applications.lt includes
suchbasics
as ambient,cord and non-cord
measuring
modes, average
calculation,
and memory
space
for two seperatereadings. In
addition,flashmeasurements
from 1/500
- 1 sec.,brightness
difference
calculation,
a wide film-speed
range,
and digital
as
well
as analog
displays
will
further
enable
you
to applytheAuto
Meter lV F to virtually
any exposure
or lighting
situation
you
encounter.You will
then be free
to concentratemore
fully
on
creativedetails.
Next, a word about this manual. lt is divided
into several
sections
to makeiteasierfor
youto learn
aboutthe meter
and
to find specificinformation
whenever
you needit. The first
two
Names of Parts and Displays and Preparations
shouldbe
read before you begin using the Auto Meter lV F. Basic
Operationthen
explainshow
to usethemeter
to make
ambient
and flash measurements.
The next section,
Special Func-
tions, describeshow to use the Auto Meter lV F's main
features.Finally,
Applications,
explainssome
uses
for
these
features
thatwill
enable
youto realize
thefull
potential
of your
AutoMeterlV
F.
TABLE
OF
CONTENTS
NAMES
OF
PARTSAND
DISPLAYS .......
2
BODY 2
DATAPANEL
DISPLAYS... 6
PREPARATIONS 8
BATTERY. 9
Inserting .""' """' I
Low-PowerWarning. " 10
SETTING
FILMSPEED
... ......1
1
SELECTING
AMEASURINGMETHOD. ....12
Incident-LightReadings ""12
Reflected-Light
Readings " 14
BASIC
OPERATION
.. ...
1
6
MEASURING
AMBIENT
LIGHT ,,..17
With
a StillCamera' "'17
With
a Cine
Camera' "1I
MEASURINGFLASH
LIGHT ..22
Witha Sync Cord """'22
Without
a SyncCord "25
SPECIAL
FUNCTIONS. ......,28
MEMORY ...,29
AVERAGE... ......32
BRIGHTNESS
DIFFERENCE .......34
RE.CALIBRATION ....36
APPLICATIONS ...,,37
LIGHTING.RATIO
MEASUREM
ENTS
SCENE.CONTRAST
MEASUREMENTS ....41
USING
THEANALOGSCALE ......45
FILTER-FACTORCORRECTION ..47
ILLUMINANCE
MEASUREMENTS ......49
ACCESSORTES ......51
CARE
AND
STORAGE... .....54
SPECIFICATIONS ..56
II

1.Power
button
turns
power
onandoff;clears
memory
2. Averaging
button
displaysaverage
oftwostored
readings;
activatesbrightness
d
ifference
3.Memorybutton
storesdisplayed
reading
inmemory
4. Data
panel
5. ISO button
selects
ISOfor
adjustment
with
up/downcontrol
6.Display-selectorbutton
changes
displayunitsbetween
flnumber
and
EV
7.Modebutton
changes
measuringmode
8.Sync
terminal
outlet
for
synccord
9. Receptormounting
index
10.
Sphericaldiffuser
11.Diffusermounting
index
12. Accessory-receptor
jack
outlet
for
accessory
receptor
2

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3.Measuring-level
adjustmentscrew
adjusts
meter
calibration
14.
Batterychamber
15.Measuringbutton
16.
Up/Down
control
adjusts
shutterspeed
andISO
values
17.Strapeyelet

DATA
PANEL
DISPLAYS
39
1.
Analogscale
displays
measured
data
andmemorydata
simultaneously
in
0.5
EV
(1/2-stop)
increments
2.Shutter-speed/Fram
ing-rate
display
displays
current
shutter
speed
or
framing
rate
Display
units:
TIME: fractions
ofseconds
TIM
E
s: whole
seconds
TIME
m: minutes
5 CINE: frames
Per
second
6 3.
Film-speed
display
displays
ISO
in1/3-stop
increments
.
7 4.
Measuring-mode
indicators
5.Memory
indicators
indicate
when
one
or
twodata
arestored
inmemory
6.
Average
indicator
appears
when average
of data or brightness
difference
is
d
isplayed
7.
Digitaldisplay
displays
f/numbers,
EV, or brightness
difference
in 0.1 EV
(1
/1
O-stop)
increments
8.
Display-unit
indicator
indicates
whethe
r tlnumber or EV is shown in the digital
d
isp
lay
9.
Ove
r-lUnder-range
indicators
indicate
when a reading
is over/under
the meter'sdisplay
rangeorsensitivity
range
8
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BATTERY
PREPARATIONS
The Auto Meter lV F is powered
by
alkaline-manganese,
carbon-zinc,
or
battery.
Installing
1.Remove
the
battery-chamber
cover by sliding
it in the
direction indicated bv the
arrow.
2. Insertthe battery
with the
plus(+)
and minus
(-)
ends
oriented according to the
d
iagram in the batte
ry
chamber.
3. Replace the battery-chamb
er
cover.
a single
AA-size,1.5v
1
.2v nickel-cadmium
L,

After
you install
thebattery,
all
of the meter's displays and
indicatorswill light for a few
seconds,afterwhichthey will
be replaced by the display
shownatright.
Auto PowerOff
To conserve
power,the Auto Meter lV F's displayautomatically
switchesoffifyoudo notmake another
reading
or press anybutton
for 10minutes.
To restore
the
display,
press
thepower button.Data
inmemory
and
thereadingwill
beerased.
Low-Battery
Warning
SETTING
THEFILM
SPEED
The Auto MeterlV F's film speed
rangeis ISO 3
1/3-stop
increments. 8000
in
When the battery's power
becomes
low, the data panel
will blink. When this occurs,
replace
the old battery with a
new
one.
1 1.42 2.84 5.6 I 11162232456490
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1.Press and hold the ISO
button.
2.Use the up/down
control
to
select
the desired
ISO val-
ue.
. ISO 125 and 1250 will
appear in the display
as
120and1200,respectively.
After
you insert
a battery,
the
film
speed
will
be resetto ISO
1
00.
lf youchangethe
filmspeedafter
youtakea measurement,
the EV or aperture
display
willchange
to maintain
a correct
reading
with the new film speed and the selectedshutter
speed.
See p.47for informationon how to use the ISO setting
to
compensate
meterreadings
forfilterfactors.
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FNo.
1 1.4
TIME
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10 11

SELECTING
AMEASURING
METHOD
Incident-Light
Readings
When
you
use
a meter to
makeincident-light
read-
ings, the exposure is
based e
ntire
ly o n th
e
brightness
of the light
falling on (incident
to)
your
subject.
Asa result,
the subject'sreflectance
(how dark or light
it is)
willnotinfluence
the meter reading
and light anddark tones
willreproduce
as
they
appearedin
the
originalscene.
Another
advantage
of incident-light meteringis thatthe light
receptor
canbematched
to
your
subject.
For three-dimensional
subjects,
you shoulduse one of the
spherical
diffusers;when you photograph
flatsurfacessuch
asposters orpaintings,
usetheflat
diffuser.
An incident-light
reading
is the simplest, most convenient
method of determining
the exposure in a wide varietyof
situations.lt is most
effectivefor scenes which
containa full
range of tones, such as in architecturaland landscape
photographs. Incident-!ight
meteringalso works well for
portrait and other situationswhere the lighting can be
controlledand adjustedto make the contrast
rangeof the
scene
fit
the
exposurerange
of
your
film.
12
Incident light metering
To takean incident-light
reading,attach
any of the diffusers
(Spherical
Diffuser,
FlatDiffuser,
MiniDiffuser,
4X Spherical
NDDiffuser,or
8XSpherical
ND Diffuser)tothe
Auto
MeterlV
F. Position
the meter near your subject,
aim the receptor
directly
at
thecamera
lens,
and
press
the
measuringbutton.
Withthe Auto
Meter
lV F, you can alsousethis
measuring
methodto quickly
determine
your
lighting
ratio.See
p.38
for
moreinformation
13

Reflected-Lig
ht Read
ings
When making ref
lected-
light
readings,
the meter
measu
res and averages
the light reflecting
from
allsubjects
within
its
field
of view. Like all
reflected-light meters,
the Auto Meter lV F is
calibratedto provide an
exposurewhichwill reproduce
the metered
areaas a tone
with18%reflectance
(zone
5)regardless ofits true
shade.
With practice,
you should
be able to pre-visualize
how you
wantvarious
parts
ofyour sceneto appear in
the
finalimage.
Youwill
then
be ableto take
a reflectedmeterreading
of any
areaand,byadjusting
thedata
provided
bytheAutoMeterlV
F,
obtain
a correctexposure.*
Reflectedreadings,
together with the meter's brightness-
differencef
unction,
enables
you to quickly
and easilydeter-
mine
the brightness range
of a scene
(see
p.41). Withthis
information,you
can then adjustthe exposure
and/or
pro-
cessing
to fit your film's exposurerange. Reflected-light
readings
are also usefulwhen you want to meter subjects
which
emit
instead
ofreflect light.
Reflected light metering
//v /FG
_ ffit flil_J
Reftected
risht fS\ ilFu,.
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\gJ
To make a ref
lected-light
reading,
attach
the reflected-light
attachment,
Viewfinder
5o or Viewfinder
10
" ll to the meter.
Position
the receptor
headso thatit is reading
the area
you
want
to meter
without
casting
a shadow
on thisareaor being
affected
bysurrounding
parts
of
thescene
orother
lights.
* lf,
forexample,
you
meteranarea
which
is
one
stop
brighter
than
zone5,you
will
haveto increasethemetered
value
by
onestop
inorder
to make
thisareaappear
withitsoriginal
brightness.
lf you meter
an area
which
is one stop darker
than zone5, you willhave
to decrease
the exposureone
stop
to keepitfromappearing
brighter
than normal. Here
again,
with
practice
you
willbeable
to recognizetherelative
brightness
of
variousshades
regardless
oftheircolor.
14 15

tsASIC
OPERATION
MEASURING
Procedure
For
1
. Press the power
turn
the
meter
on.
. The most recent settings
will appear in the disPlaY
window.
2. Refer
to p.11
and set the
desired
filmspeed.
3.lf the meter is not set to
ambient mode, Press the
mode button until AMBI
appears
in the disPlaY
win-
dow.
. Any data in the aperture
display
orin
memorY
willbe
cleared
at
this
point.
4. P
ress the display-selector
button to set the units in
which
measured
data
willbe
displayed.
. When the meter is set to
display EV numbers,the
analog scale and shutter-
speed display
will not aP-
pear.
AMBIENT
LIGHT
Use
WithA Still
Camera
button to
16 17