Olympus Quick Auto 310 camera flashes, OM 2, OM 1 camera Operating instructions

(4
OLYMPUS
SYSTEM
QUICK AUTO 310
mM OPERATING INSTRUCTIONS
1] OPERATING INSTRUCTIONS FOR QUICK AUTO 310
The Olympus Quick Auto 310 is the
world's first electronic flash unit that
offers the accuracy and convenience of
using your Olympus OM-2's Through-
The-Lens Direct Light Measuring system
to automatically control flash expo-
sures. Exposure is controlled by the
light reaching the film rather than an
independent sensor which may view
a different area from the camera lens.
Quick Auto 310 Flash Photography
In addition to this epoch-making
method dubbed by Olympus “TTL
Centralized Control Flash” or “TTL
Auto’ for short, the Quick Auto 310
is equipped for regular Automatic
Exposure Control as well as Manual
Flash operation. As an integral part of
the OM System Flashphoto Group,
The Quick Auto 310 can be adapted to
all your creative photographic needs.
Flash Mode
Camera Flash Holder Dial Setting YA Remark
Direct Bounce | Close-up j Sm ay
High-speed Fill-in
6 Accessory Shoe 2 TTL AUTO o С) * G A x with TTL Auto
о | Вечпсе ore 2 TTL AUTO | + @* © * О* О* Ax | Cord 0.6m
м | Accessary Shoe 1 or 2 AUTO" A A A
= l'A [a e NORMAL X A x
(Selec-| py | Bounce rip AUTO
tor
lever A Accessory Shoe 1 or 21| MANUAL А e
setting) L | Bounce Grip || MANUAL A ©
Accessory Shoe 1 NORMAL 9 O А * with Remote
TENE Bounce Grip NORMAL e ОЖ © A
(8: other
Accessory Shoe 1 MANUAL А o
cameras)
Bounce Grip MANUAL A e
О = Recommended: AA = Feasible
©. | TABLE OF CONTENTS
[INTRODUCTION]
® Nomenclature . , . .
® Main Specifications
® Basic Flash Units Combination . .
® Loading the Batteries
SYSTEM
[WITH OM-2|
® Mounting on to the OM-2 ..... 10
@ TTL AUTO Flash with OM-2 . . . 11
STTL AUTO Flash in Special
Situations with OM-2 ...... 14
e High-technique TTL AUTO Flash
МИНУС == <= F% TEX EX 4 15
NORMAL AUTO Flash
withOM-2, . ........... 17
© MANUAL Flash with OM-2 , . . . 17
e High-technique MANUAL Flash
with OM-2. .. . . . . —.onrea 18
WITH OM-1 (& OTHER CAMERAS)|
® Mounting on to the OM-1 ..... 20
® NORMAL AUTO Flash
with OM-1. ............ 21
e NORMAL AUTO Flash in Special
Situations with OM-1 . ..... 25
e High-technique NORMAL AUTO
Flash with OM-1 ........... 26
® MANUAL Flash with OM-1 . . . . 27
® Daylight Fill-in Flash ....... 30
e Chart of OM System Flashphoto
Grove 1: aa EX Er a à 31
[e] NOMENCLATURE
Flash Surface
(mT TE)
NORMAL AUTO E Pp Us
Sensor Window xternal Power Socke
TTL AUTO/NORMAL AUTO/
MANUAL Switch Dial Index
NORMAL AUTO
F-stop/ MANUAL e 8 Ready/Charge Lamp 8 Lock Knob
GN Window
ASA Window e Synchro Cord Socket e
AUTO Check
Lamp
CFL EUTCY 30
= Pu
Test Button ® $ Accessory-Shoe Mount
Battery Chamber Cover e s Hot-Shoe Contact
a Power Switch
prepa sop ° s ASA Setting Button ® TTL AUTO Contact
(9. MAIN SPECIFICATIONS
® Type: Energy-saving, series-circuit
type TTL automatic exposure, sys-
tem electronic flash unit
e Guide Number: 34 at peak (ASA 100,
m) or 55 at peak (ASA 25, ft)
e Coverage Angle: 50° vertical, 80°
horizontal
e Flash Duration: 1/40,000—1/1,000
sec.
e Recycling Time: 0.2-12 sec. with
AA alkaline batteries
® Flashes per set of AA Alkaline Bat-
teries: 100~over400on TTL AUTO
and NORMAL AUTO (varies de-
pending on flash-to-subject distance).
e Color Temperature: 5,5007 K
® Connection to Camera
Mechanical: Clip-on type (via acces-
sory shoe) or grip type (via Bounce
Grip)
Electrical: Direct contact (hot shoe),
or via Auto Cord or Synchro Cord
® Dial Setting: TTL AUTO/NORMAL
AUTO/MANUAL rotating dial
® TTL AUTO
Aperture Setting: Continuous, ac-
cords with aperture ring setting of
camera-linked lens
SBC Sensor Acceptance Angle: Ac-
cords with view of angle of camera-
linked lens
Working Range: 0.25—-23m (ASA
100, F1.2 lens) with self-setting dis-
tance scale
TTL AUTO Check: Neon-flicker (ap-
prox. 5 sec. after flash)
Bounce Flash: Bounce Grip + TTL
Auto Cord 0.6m
a NORMAL AUTO
Aperture Setting: Choice of 3 aper-
tures (F4, F5.6 and F8 at ASA 100,
m)
Normal Auto Sensor Acceptance An-
gle: Approx. 20°
Working Range: 0.5” —8.5m (ASA
100) with self-setting distance scale
AUTO Check: Neon-flicker (approx.
5 sec. before or after flash)
Bounce Flash: Bounce Grip + Remote
Sensor
e Manual Flash Guide Numbers: HI—34,
LOW-17 (ASA 100, m)
e Test Button for NORMAL AUTO
Check & Open Flash: Push-button
type (for non-TTL AUTO only)
® Power Source Options: (1) Self-con-
tained 1.5V AA penlight battery x 4
(excluding NiCads) (2) 1.5V C bat-
tery x 4 in Bounce Grip (excluding
NiCads) (3) Layer battery 315V
Power Pack @ AC house current
via F. AC Adapter
6
Combination (DO3) or DOM)
compatible.
e Size and Weight: 99 x 80 x 73mm,
330g (less batteries) (3 7/8 x 3 1/8
x 27/8", 11.6 oz)
* At minimum autoflash working dis-
tances on TTL AUTO and NOR-
MAL AUTO, where the least amount
of flash light is required; e.g., at a
flash-to-subject distance of 0.5m at
F8 (ASA 100).
** At a flash-to-subject distance of 1
m or closer, it is recommended to set
the f/stop to 8 (ASA 100).
eu] BASIC FLASH UNITS COMBINATION
1%] LOADING THE BATTERIES
1. Remove the Battery Chamber Cov-
er.
Slide the Cover in the direction of the
arrow.
2. Insert the Batteries.
Insert four 1.5V AA size batteries
properly as indicated by the polarity
marks © and ©.
*Use all fresh batteries. Mingling old
one will shorten overall battery life.
* Three kinds of AA battery are availa-
ble on the market. Alkaline batteries
will last about 4 times as long as the
Manganese type.
Nickel-cadmium batteries are not re-
commended as they will damage the
Quick Auto 310 circuitry.
3. Replace the Battery Chamber Cover.
Align the cover to both edges of the
Battery Chamber and push in until it
snaps into place.
Connection of external power sourc-
es: The External Power Socket in the
flashhead accepts the lead from
the optional F. AC Adapter or
: 315V Power Pack.
FOR USE WITH OM-2
[SY] MOUNTING ON TO THE OM-2
1. Attach the Accessory Shoe 1 or 2
to the OM-2.
1) With Accessory Shoe 2
TTL AUTO, NORMAL AUTO
and MANUAL methods are avail-
able,
2) With Accessory Shoe 1
NORMAL AUTO and MANUAL
methods are available. (See page
17.)
2. Mount the Quick Auto 310 on to
the accessory shoe.
Slide the Quick Auto 310 into the
accessory shoe as far as it will go,
and tighten the Lock Knob in the
direction of the arrow ("FIX").
* Use a coin or similar item to tighten
the Lock Knob firmly.
* On cameras with a hot shoe, the
synchro circuit is automatically con-
nected when the flash unit is
mounted,
3. Set the ASA film speed.
Rotate the Switch Dial until the proper
ASA rating for the film being used
appears in the ASA Window, using the
ASA Setting Buttons.
* During TTL AUTO flash operation,
the SBC sensors built into the OM-2
body are used to measure the light re-
turning from the subject. Since the
NORMAL AUTO Sensor built into the
Quick Auto 310 is not used, there is
no need to set the film speed or aper-
ture on the unit. However, by setting
the ASA film speed, the self-revealing
Distance Scale can be used,
* At NORMAL AUTO and MAN-
UAL flash operation, be certain
to set the film speed properly; if
not, correct exposures cannot be
made,
(9 TTL AUTO FLASH WITH OM-2
1. Set the camera's selector lever to 2. Set the camera's synchronization 3. Set the Switch Dial to the “TTL
the "AUTO" position. terminal to "XxX". AUTO" position.
* Be certain the lever is set at the click- Turn the red index of the X and FP Rotate the Switch Dial counter-
stop position. flash selector opposite to the “XX”; clockwise until the white triangle is
the synchro circuit will be turned to aligned with the white line.
“X'' setting. *The TTL AUTO flash will function
properly only at the click-stop posi-
tion.
4,
aperture ring.
Set the f/stop with the camera's
1) Focus on your subject to determine
the camera-to-subject distance.
2) Any setting between the maximum
and minimum apertures of the
camera-linked lens can freely be se-
lected as far as it is within the TTL
(ASA 100)
_ Distance f/stop | Working range
1.2 | 3.3m—-23m
Far 2 2m— 14m
2.8 1.4m—10m
má 4 1m—7m
Medium 5.6 0.7m— bm
| 8 0.5m—3.5m
11 0.35m—2.5m
Close 16 0.25m—1.8m |
22 | 0.17m—1.3m |
3)
AUTO working range,
The table below indicates approxi-
mate TTL AUTO distances corre-
sponding to individual f/stops. Se-
lect a suitable f/stop based on the
table.
The TTL AUTO working ranges (in
meters) appear in the Distance Scale
Window at the bottom left of the
Switch Dial for quick consultation.
* If the subject is beyoud the TTL
AUTO range, set the aperture ring
at a larger f/stop or move in closer
to the subject.
* Conversely, if the subject is closer
than the minimum working dis-
tance, reverse the above procedure.
* The Test Button for before-flash
auto check cannot be used during
TTL AUTO operation.
12
in light blue
5. Check the shutter speed.
Aim the subject and check to see if the
meter needle points a shutter speed
slower than 1/30 sec. (speeds indicated
in light blue). If the shutter speed is
out of the light-blue range, rotate the
aperture ring for a smaller f/stop until
the meter needle comes in the range.
* |f the shutter speed is faster than the
synchronizing time, the electronic
flash unit will not fire when you
press the shutter release button,
6. Turn the Power Switch to ON.
Wait for the Ready/Charge Lamp to
glow.
When the Quick Auto 310 is used
with a 24-mm super wide-angle lens,
marginal light falloff on the picture
may sometimes be caused due to the
difference between the area viewed
by the lens and the area lit by the
flash. Particularly at close distances
shorter than 1.5m or when taking a
subject of an overall flat surface, e.g.,
a white wall, shading around the
upper or bottom edge of the picture
is likely to occur, Care should be
exercised to overcome the parallax
by using the Bounce Grip, etc.
7. Press the shutter release button.
* When correct exposure is made, the
closing curtain travels across the film
plane as soon as the flash duration is
over regardless the shutter speed in;
dication in the viewfinder,
* If this is not the case, the amount of
flash light is insufficient (beyond
TTL AUTO range).
If you want to continue TTL AUTO
flash operation without altering much
of the situation: (1) approach to the
subject; (2) select a larger f/stop; or
(3) switch the selector lever to "OFF"
— a shade underexposure, perhaps,
but no blurring {only at ASA 25 ~
200).
* the correct exposure has been made.
9. Turn off the Power Switch.
13
8. Check to see if correct exposure is
made.
When the correct exposure is made,
the Auto Check Lamp flickers. (When
the Auto Check Lamp does not flicker
indicating that the subject was beyond
the maximum operating range, wait for
the shutter to close before attempting
to advance the film.)
* The flickering of the Auto Check
Lamp, even when the Ready/Charge
Lamp is not lit, as in consecutive
flashing, also indicates that correct
exposure has been made.
"A flash-to-subject distance of less
than 0.25m at f/16 (0.35m at f/11,
0.5m at f/8, and so on) is outside
the TTL AUTO operating range. The
flickering of the Auto Check Lamp
in such a case does not indicate that
bi TTL AUTO FLASH IN SPECIAL
1. Intentional over- and under-expo-
sure
To over-expose intentionally, turn the
exposure compensation dial to the plus
(+) side.
To underexpose intentionally, turn
the dial to the minus (—) side.
2. Portrait with night sky in the back-
ground
When the subject is not in the central
part of the finder and surrounded with
dark background such as night sky, or
when the background is so far away
to take pictures with the flash light,
over-exposure may result.
In such a case, turn the exposure com-
pensation dial to —1 ~ —2.
SITUATIONS WITH OM-2
3. Portrait with white walls at back
Generally when a white back such as
white walls occupies the greater part
of the picture or when a large white
table is in front of the subject, the sen-
sors tend to see the intense reflected
light from it. In a situation like this,
turn the exposure compensation dial
to +1 — +2.
* The exposure compensation dial
functions properly only at the click-
stop settings.
* The shutter speed will vary in response
to the dial operation; recheck the shut-
ter speed. (See Step 5, page 12.)
* After taking a picture, make sure
vou return the dial to the normal
setting.
EEE a
14
if HIGH- TECHNIQUE TTL AUTO FLASH WITH OM-2
1. Bounce TTL AUTO flash
The TTL Centralized Control flash
makes bounce and diffuse flash tech-
niques as easy as direct flash.
The bounce flash technique produces
realistic, subdued lighting effects. Using
the Bounce Grip and TTL Auto Cord
0.6m, simply aim the Quick Auto 310
at a convenient ceiling or wall to illu-
minate your subject with an even glow
of reflected light.
Since the amount of light reaching the
subject varies with the bounce angle
and distance as well as the reflectivity
of the wall or ceiling, you should open
the lens aperture 2 or 3 stops larger
than the f-stop indicated on the Dis-
tance Scale,
2. Diffuse TTL AUTO flash
Diffuse flash light is used to soften il-
lumination when you want to use a
large aperture at close range or when
shooting with a wide-angle lens with
a focal length less than 24mm.
Cover the Quick Auto 310 Flash Lens
with tracing paper or white cloth. The
camera's Through-the-lens metering
system will compensate for any reduc-
tion in light output and compute
correct exposure.
Since the amount of light reaching the
subject will vary with the light trans-
mission characteristics of your diffusion
material, you should open the lens aper-
ture 1 to 3 stops larger than the f-stop
indicated on the Distance Scale.
3. Close-up TTL AUTO flash
1) In close-up and macrophotography
that use the extension tube, close-
up lens or auto bellows, the on-
camera flash unit will produce shad-
ing due to parallax or eclipse due to
the elongated lens barrel.
To solve these problems, the flash
unit must be separated from the
camera and connected with the
TTL Auto Cord 0.6m to illuminate
the object from an appropriate off-
camera position.
2) Select the f/stop referring to the
table on page 12.
Closest TTL AUTO distance LASA 100)
as | 456 8 11 16 22
| flash-to-
| object 1 0.7 0.5 0.35 0. 25 0.1 7
distance (m)
distance: not camera-to-object
(Extracted from table, page 12)
* The diffuse flash technique allows
you to shorten the above closest
distances further,
4. Ultra high-speed TTL AUTO flash
In this technique, a short flash dura-
tion is used to stop high-speed mo-
tions. The auto electronic flash is de-
signed to further cut off the already
short flash duration to achieve proper
exposures. In close-up, a duration of
up to 1/40,000 second is available to
freeze objects moving with ultra high-
speed, such as the flying bee and milk
crown. At each f/stop setting, the
fastest flash duration is available at
the minimum working distance.
5. Daylight fill-in TTL AUTO flash
Daylight fill-inon TTL AUTO isfeasible,
but limited to a considerable extent by
the natural light and subject conditions.
This method is practical when the main
subject, e.g., a model, occupies most
part of the central area of the focusing
screen, or when ambient light is rela-
tively dim.
1) Determine the f/stop so that the
meter needle points around 1/30
sec.
2) Make sure the selected f/stop satis-
fies the TTL AUTO flash range.
(See Step 4, page 12.)
bdd NORMAL AUTO FLASH WITH OM-2
The Quick Auto 310/0M-2 combina-
tion offers the fastest kind of opera-
tion and outstanding performance on
TTL AUTO. In the following cases,
however, NORMAL AUTO method
(ordinary, non-TTL autoflash) must be
conducted.
1) On-camera flash linked with Acces-
sory Shoe 1
2) Off-camera flash linked with Bounce
Grip (in case TTL Auto Cord 0.6m
is not available)
‚ Set the camera's selector lever to
"MANUAL".
. Set the camera's shutter speed con-
trol. (See page 21.)
. Set the camera's synchronization
terminal to ‘X’, (See page 21.)
For following procedures, see pages
22—24.
"| ЛР ГЛ ГВ
bad WITH OM-2
To make more interesting pictures, the
MANUAL method is highly useful; per-
ticularly, in daylight filling-in. (See page
18.)
1. Set the camera's selector lever to
"MANUAL",
2. Set the camera's shutter control.
(See page 21.)
3. Set the camera's synchronization
terminal to "X"". (See page 21.)
4. Set the ASA film speed on the Quick
Auto 310, (See page 21.)
5. For following procedures, see pages
27—29.
oo HIGH-TECHNIQUE
MANUAL FLASH WITH OM-2
1. Daylight fill-in flash
2) Set the aperture of the camera-
lens.
1) Determine the amount of light out-
put and set the Switch Dial.
In general, this technique will be
used in bright daylight so, in most
situations, the HI
used. (See page 27.)
setting will be
3
Read the F-number corresponding
with the planned flash-to-subject
distance in the Distance Scale, then
set the F-number to the camera-lens.
Rotating the shutter speed dial, set
the camera to the correct ex-
posure for the brightness of entire
background.
* Set the shutter speed dial to
click-stop positions. For fine ex-
posure adjustment, slightly turn
the aperture dial or change the
subject distance by moving to or
away from the subject.
* With the OM-2, 1/60 sec. or slow-
er. (See page 24.)
* With the lens-shutter camera, see
the manual for your camera.
* Brightness balance between natu-
ral light and flash light may vary
depending on your desired effects.
Adjust the amount of light accord-
ingly.
FOR USE WITH OM-1(& OTHER CAMERAS)
bid MOUNTING ON TO THE OM-1 (& OTHER CAMERAS)
1. Attach the Accessory Shoe 1 to the
OM-1.
* The Accessory Shoe 2 cannot be
mounted on the OM-1.
2. Mount the Quick Auto 310 on to
the accesory shoe.
Slide the Quick Auto 310 into the ac-
cessory shoe as far as it will go, and
tighten the Lock Knob in the direction
of the arrow ("FIX").
* Use a coin or similar item to tighten
the Lock Knob firmly.
* On caremas with a hot shoe, the syn-
chro circuit is automatically con-
nected when the flash unit is mounted.
20
* On cameras without a hot shoe:
1) Make certain the Power Switch is
2
—
turned to OFF and plug the op-
tional Synchro Cord into the Syn-
chro Cord Socket of the Quick
Auto 310, then mount it on to
the camera. (This will eliminate
any possibility of accidental flash-
ing due to short circuit across the
Accessory-Shoe Mount and acces-
sory shoe.)
Plug the other tip of the Synchro
Cord into the camera's synchroni-
zation socket.
(| NORMAL AUTO FLASH WITH OM-1 (& OTHER CAMERAS)
3. Set the camera's synchronization
1. Set the ASA film speed. 2, Set the camera's shutter speed dial
Rotate the Switch Dial until the proper 1) Focal-plane shutter camera terminal to Хх”.
ASA rating for the film being used ap- Set the shutter speed for synchro- With the OM-1, set the X and FP Selec-
pears in the ASA Window, nization as per the manual for your tor to Хх".
camera. With the OM-1, 1/60 sec.
or slower.
Lens-shutter camera
The lens shutter camera synchro-
nizes the electronic flash at all shut-
ter speeds.
See the manual for your camera for
details,
2
“=
21
4, Set NORMAL AUTO F-number on
the Quick Auto 310.
Set the Switch Dial Index (white arrow)
to one of the three AUTO Aperture
Settings {| @ ® # ) depending on the
desired effects. The F-number corre-
sponding to the symbol will appear in
the NORMAL AUTO F-stop/MAN-
UAL GN Window.
* Be sure the Switch Dial is set at one
of the click-stops.
1) The largest aperture ® (F4 in case
of ASA 100, m) when you want:
A small amount of light output.
. To reduce glare on your subject.
Shallow depth of field.
. Greater auto working distance.
To shorten recycling time.
To stop high-speed movements.
To prolong battery life.
To open lens aperture in daylight
fill-in.
те oan oh
22
2) The smallest aperture & (FB in case
of ASA 100, m) when you want:
a. A large amount of light output.
b. Strong contrast.
c. Greater depth of field.
d. To make the flash unit as a main
light source.
e. To zero-in on backlighting by
closing lens aperture in daylight
fill-in.
f. To minimize the effect of recip-
rocity failure, and
when too much light at close dis-
tance.
The in-between aperture ® (F5.6
in case of ASA 100, m) when you
want the effects between @ and
E. This setting will be used most
often for average flash shots.
3
o
5. Turn the Power Switch to ON.
Wait for the Ready/Charge Lamp to
glow.
6. Check whether the subject is in the
NORMAL AUTO range.
1) From the planned shooting position,
aim the flash at the subject and push
the Test Button. If the AUTO Check
Lamp flickers, the subject is within
the NORMAL AUTO flash operat-
ing range.
2) In the Distance Scale at the top right
of the Switch Dial you can see the
operating range (in meters) that
corresponds with the F-number you
selected.
If the subject is beyond the NOR-
MAL AUTO operating range, set
the AUTO Aperture Setting at a
larger f-stop setting.
“т
3
23
7. Set the aperture control of the
camera-lens.
Set the aperture control to the F-num-
ber that appears in the NORMAL AUTO
Fstop/MANUAL GN Window.
8. Release the shutter.
When the Quick Auto 310 is used
with a 24-mm super wide-angle lens,
marginal light falloff on the picture
may sometimes be caused due to the
difference between the area viewed
by the lens and the area lit by the
flash. Particularly at close distances
shorter than 1.5m or when taking a
subject of an overall flat surface, e.g.,
a white wall, shading around the
upper or bottom edge of the picture
is likely to occur. Care should be
exercised to overcome the parallax
by using the Bounce Grip, etc.
9. Check to see if correct exposure is
made.
When the correct exposure is made, the
AUTO Check Lamp flickers.
* The flickering of the AUTO Check
Lamp, even when the Ready/Charge
Lamp is not lit as in consecutive
flashing, also indicates that correct
exposure has been made,
* A flash-to-subject distance of less
than 0.sm (ASA 100) is outside the
NORMAL AUTO operating range.
The flickering of the AUTO Check
Lamp in such a case does not in-
dicate that the correct exposure has
been made.
* To confirm whether correct exposure
is made, conduct either Procedure 6
(before shooting) or 9 (after shooting)
above,
24
10. Turn the Power Switch to Off.
Turn off the Power Switch when you
have finished or during extended peri-
ods between pictures.
bu NORMAL AUTO IN SPECIAL SITUATIONS WITH OM-1 (& OTHER CAMERAS)
1. Intentional over- or under-exposure 2. Portrait with night sky in the back- 3. Portrait with white walls at back
Open or close the lens aperture off the ground Generally when a white back such as
F-number set on the Switch Dial. Ad- When the subject is not in the central white walls occupies the greater part of
just the f-stop according to your photo- part of the finder and surrounded with the picture or when a large white table
graphic purpose. dark background such as night sky, or is in front of the subject, the Sensor
when the background is so far away tends to see the intense reflected light
to take pictures with the flash light, from it. In a situation like this, open
over-exposure may result. the lens aperture one stop or two off
In such a situation like this, close down the F-number set with the Switch Dial.
the lens aperture one stop or two off
the F-number set with the Switch Dial.
25
e) HIGH- TECHNIQUE NORMAL AUTO FLASH WITH OM-1 (& OTHER CAMERAS)
1. Bounce Flash
The bounce flash technique produces
realistic, subdued lighting effects. Using
the optional Bounce Grip and Remote
Sensor mounted on your camera,
bounce flash can be easily performed
at all bounce angles and distances.
Simply aim your Quick Auto 310 at a
convenient ceiling or wall to illuminate
your subject with an even glow of re-
flected light. The Remote Sensor will
point with your camera at the subject,
keeping its “eye” on the exposure. For
detailed operating instructions, see the
leaflet packaged with the Remote
Sensor.
2. Diffuse flash
Diffuse flash light is used to soften il-
lumination when you want to use a
large aperture at close range or when
shooting with a wide-angle lens with a
focal length less than 24mm.
Cover the Quick Auto 310 Flash Lens
with tracing paper or white cloth taking
care not to cover the Sensor if a Remote
Sensor is not being used. The monitor
circuit computes correct exposure auto-
matically compensating for the reduc-
tion in light reaching the subject be-
cause of the diffusion material.
26
3. Ultra high-speed flash photography
In this technique, a short flash dura-
tion is used to stop high-speed motions.
The auto electronic flash is designed to
further cut off the already short flash
duration to achieve proper exposures.
In close-up, a duration of a fraction of
1/10,000 sec. is available to freeze
objects moving with ultra high-speed,
such as the flying bees and milk crown.
Move close enough to the subject.
MANUAL FLASH
4. Daylight fill-in Flash
NORMAL AUTO daylight fill-in is
possible, but limited to a great extent
by brightness and subject conditions.
This method is practical when the
main subject, e.g., a model, occupies
most part of the central area in the
focusing screen.
1) Determine f-stop and set it on the
Switch Dial. (See page 22.)
2) Set the aperture control of the
camera-lens to the F-number set
on the Switch Dial. (See page 23.)
3) Set the camera to the correct ex-
posure by rotating the shutter speed
control. (See page 21.)
* Affected by the ambient light, the
balance of flashing will vary. De-
pending on your own particular
photographic situations, bracket
exposures.
1. Set the ASA film speed.
(See page 21)
2. Set the camera's shutter speed con-
trol.
(See page 21.)
3. Set the camera's synchronization
termianl to “X”.
27
[See page 21.)
WITH OM-1 (8: OTHER CAMERAS)
4. Make the manual power setting.
Set the Switch Dial Index (white arrow)
to the HI or LOW power setting depend-
ing upon the desired effects.
* Be sure the dial is set at one of the
click-stops.
HI: Full power flash at GN34
(ASA 100, m, at peak) '
LOW: 1/4 light amount at GN17
(ASA 100, m, at peak)
1) HI power setting J (GN 34 at
peak in case of ASA 100 in meters)
when you want:
a.
b.
с.
A large amount of light output.
Greater flash-to-subject distance.
More light than at the LOW set-
ting.
Greater depth of field by closing
lens aperture.
To zero-in on backlighting by
closing lens aperture in daylight
fill-in.
2) LOW power setting +»
(GN 17 at
peak in case of ASA 100 in meters)
when you want:
a.
b.
ao
when lens aperture cannot be suf-
ficiently stopped down at Hl set-
A small amount of light output.
To take pictures at a close flash-
to-subject distance.
To reduce glare on your subject.
To shorten recycling time,
To increase number of flashes
per set of batteries.
Less depth of field by opening
lens aperture.
To zero-in on backlighting by
opening lens aperture
light fill-in, and
ting.
28
in day-
5. Set the camera-lens’ F-number.
Set the aperture control of the camera-
lens to the F-number that corresponds
with the planned flash-to-subject dis-
tance shown in the Distance Scale at
the top left of the Switch Dial.
6. Turn the Power Switch to ON.
Wait for the Ready/Charge Lamp to
glow.
7. Release the shutter.
* At the "LOW" setting in the manual
operation, the Auto Check Lamp will
flicker as the auto circuit is used in
conjunction with this setting; how-
ever, this is irrelevant to flash check-
ing procedure.
29
eo V|DAYLIGHT FILL-IN
SYSTEM LASH
You would often want to lighten a sub-
ject in shadows — in back light, under a
tree, or indoors with part of the out-
door scene in the background — giving
detail in the shadows as well as in the
surrounding highlights.
In such situations, the TTL AUTO and
NORMAL AUTO operations are pos-
sible, but may be affected to a consi-
derable extent by the ambient light
and subject conditions; therefore,
MANUAL operation is recommended.
See “High-technique MANUAL Flash
with OM-2, page 18.
(Oui TTL AUTO CORD 0.6m
The TTL Auto Cord 0.6m becomes
necessary when the Quick Auto 310
is separated from the OM-2 to con-
duct off-camera TTL AUTO flash, or
bounce TTL AUTO flash in conjunc-
tion with the Bounce Grip. (The Ac-
cessory Shoe 2 must be attached to
the OM-2 in advance.)
1. Slide the Camera-plug into the Ac-
cessory Shoe 2 as far as it will go,
after making sure which end is the
front.
* The Camera-plug cannot be in-
serted in reverse.
2. Insert the Flash-plug into the syn-
chro cord socket of the Quick Auto
310.
CAUTION
a Should any one of the OM-2, Acces-
sory Shoe 2 and Quick Auto 310 is
replaced with other unit, TTL AUTO
flash operation is not available: in-
stead, the flash light is emitted on
full output.
® Inserting the Flash-plug into the syn-
chro cord socket automatically sets
the Quick Auto 310 to the TTL
AUTO mode, even when the Switch
Dial Index is not aligned to the “TTL
AUTO" mark.
e When the Bounce Grip is used in con-
junction with the TTL Auto Cord
0.6m, the built-in sync cord of the
bracket unit should be placed back
into its storage groove. If the built-
in synch cord is plugged into the
camera's synchronization socket, the
Quick Auto 310 wil not function.
® "HANDLING CARE
ева т)
1) As the color temperature of the
Quick Auto 310 is similar to that
of the sunlight, use daylight color
films.
2) Do not leave the unit in a tempera-
ture area above 50°C (122°F).
At temperatures under 0° (32°F),
the circuits and batteries will not
function normally. Warm them be-
fore use.
3
“=
4
“=
When the flash is not being used for
a long period, remove the batteries
to prevent battery leakage.
With the Switch Dial set to “TTL
AUTO”, accidental flashings may
sometimes occur when the fully
charged Quick Auto 310 is attached
to or detached from the camera.
Do not hit the flash unit or let it
strike any hard object.
5
“=
6
| CHART OF FLASHPHOTO GROUP
SYSTEM
OLYMPUS
OLYMPUS OPTICAL CO. LTD.
43-2 Hatagaya 2-chame, Shibuya-ku, Tokyo, Japan
PRINTED IN JAPAN:1EPS31 (50378: 3M5
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