To an OM-10 Owner

We appreciate very much that you have acquiredan OM-10, a camera designed to allow you to takegood pictures automatically and with the greatestease.The Olympus OM-10 is a single lens reflex cameraof the finest quality in which the automation ofphotographic functions has been made possibleby employing the most advanced electronics. Toits acceptability of Olympus interchangeable lens-es, a special film winder, a flash, and a host of

other accessories are added to make it a completesystem of photography. With the OM-10 you cangradually widen your enjoyment of the photo-graphic art.We sincerely wish that it will become for you asource of unending satisfaction. To this effect,please read this instruction manual carefully be-fore using the camera, so that you may be sureof taking correct, beautiful pictures every timeyou use your OM-10.

1

TABLE OF CONTENTS

Description of Controls . . . 3Preparations before

Taking Pictures . . . . 6 to 15Mounting and Detaching

the Lens . . . . . . . . . . 7Inserting the Batteries . . . 9Checking the Batteries . . . 10Loading the Film . . . . . . 11Setting the ASA Film Speed . 15

The Way to AutomaticPhotography . . . . 16 to 25

Setting the Aperture . . . . 17Taking Picture Auto-

matically . . . . . . . . . 19The OM-10: Designed to Save

Battery Consumption . . . 22Switching the Camera Off . 23Rewinding the Film . . . . 23Unloading the Film . . . . 24The Use of the Self-Timer . 25

Photographic Techniques. . . . . . . . . . . . . 26 to 42

Controlling the-Exposure .27Photography with Shutter-

Speed Priority . . . . . . 28Exposure Compensation . . 29

Long Exposures . . . . . . 30Flash Photography . . . . . 31Using the Winder 2 . . . . . 33From General Photography

to the Use of Interchange-able Lenses . . . . . . . . 35

Making Use of the Depth ofField . . . . . . . . . . . . 37

Manual Exposure Control . 39Care and Storage of the

Camera . . . . . . . . . . . 43Questions and Answers . . . 45Main Specifications . . . . . 47

2

DESCRIPTION OF CONTROLS

Rewind Release Lever(P. 23)

(P. 10, P.25)

Self-Timer/Battery Check Light

Self-Timer/Battery Check Beeper

Preview Button

(P. 39)Manual AdapterSocketShoulder StrapEyelet

(P. 39)

Manual AdapteGuide Knob

Standard Lens

3

The photo indicates OM-10 camera body with the 50mm F1.8 standard lens.

Depth of Field Scale

Aperture Ring

Focusing Ring

Lens Mount RingExposureCompensation Dial

Mode/ASA FilmSpeed DialMode Index

Shutter Release ButtonActivator Switch

Exposure Counter(P. 14)

(P. 37)

(P. 17, P. 27)

(P. 19)

(P. 29)

(P. 15)

(P. 30)

(P. 22)

(P. 22)

Lens Release Button(P. 8)

Rewind Knob/Camera Back Release

Rewind Crank(P. 24)

Selector Dial(P. 17, P.23, P.25)

(P31)

Accessory Shoe

X Contact

(P.30, P.39, P.49)

Mode Selector Lever

Film Advance LeverFlash Charge/AutoCheck Contact

(P. 11, P.24)

4

Tripod Socket

Winder Coupling TerminalWinder Coupling SocketGuide Pin HoleBattery Chamber

Body Mount Ring

(P. 33)

(P. 33)

(P. 33)

(P. 33)

(P.9)

Shutter CurtainFilm Rewind

Shaft

(P.11)Film Chamber

Film Guide Pins

Viewfinder Eyepiece FrameSprocketFilm Take-up SpoolCamera BackFilm Pressure Plate

Film CartridgePressure Spring

(P. 18)

(P. 13)

(P. 12, P. 13)

(P.11)

5

PREPARATIONS BEFORE TAKING PICTURES

The OM-10's circuitsare powered by two 1.5V alkaline-manganese or silver oxide batteries.

Without them, the shutter of this electronicsingle lens reflex camera will not function.

This sectionis devoted to explaining the preparations

which you must go through before proceeding to take pictures.Please keep in mind that they are indispensable

for obtaining good results.

6

* If you have purchased an OM-10 in conjunctionwith a lens, the body cap and rear lens cap arenot provided.

Remove the front lens cap.Remove the body cap and the rear lens cap.*

MOUNTING AND DETACHING THE LENS

7

Detach the lens.Mount the lens.

8

INSERTING THE BATTERIES

Remove the cover of the battery chamber. Insert two 1.5V alkaline-manganese batteriesLR44 (A76).Replace the cover.

(NOTE)Two 1.5V silver oxide batteries SR44 (EvereadyEPX-76) or equivalents can be also used.

9

(Attention)If no sound is heard and the light does not turnon, the batteries have not been correctly inserted,or their charge is exhausted. In this case they mustbe replaced.

A beeping sound is heard and the battery checklight turns on.After the check set back the dial.

Move the selector dial to "CHECK".

CHECKING THE BATTERIES

10

LOADING THE FILM

Load the film.

Open the camera back.(Never load or unloadthe camera in direct sun-light.)

11

Insert the film leader in one of the slots of thetake-up spool.

The film leader must not be excessively drawnout.

(The film leader doesnot enter completely.)

(The film leader isexcessively drawn out.)

(The film leader istwisted.)

12

The perforations of the film must engage withthe sprocket teeth. Make sure it is well tense,and close the back

Wind the film once.

13

Take blank shots until the exposure countershows "1".

(Ways of taking blank shots)

This instance is not suit-

able for taking blank shots

since the automatic ex-

posure control built in the

OM-10 prolongs the ex-

posure time.

14

SETTING THE ASA FILM SPEED

Set the ASA film speed.(The ASA film speed dial is set at ASA 100.)

15

THE WAY TO AUTOMATIC PHOTOGRAPHY

All the problemsof exposure are electronically taken care

by the OM-10.It is a single lens reflex camera

which can be set for automatic control of exposure,and when set so taking correctly exposed,

beautiful pictures could notbe simpler.

16

Set the desired aperture.

(Aperture guideline)

Confirm that the camera is set at the "AUTO"position.

Set the selector dial at the "ON" position.NOTE: To make full use of the aperture ring, read

page 27.

SETTING THE APERTURE

17

The proper shutter speed lights up in the viewfinder.

18

TAKING PICTURES AUTOMATICALLY

Focus.

19

Out of focus. Correct focus.

20

When holding the camerahorizontally, make sureto press your elbowsagainst your body.

Have your elbow pressedagainst your body whenholding the camera verti-cally, too.

THE OM-10: DESIGNED TO SAVEBATTERY CONSUMPTION

this light will go off automatically after 90 sec-onds, to prevent unnecessary battery consump-tion.< When the activator switch is touched ... >With a light touch on the activator switch, energywill begin flowing again, and the light which hadgone out after 90 seconds will turn on again.

Gently press the shutter release button.

< When the selector dial is turned to the "ON"position... >Energy flows from the alkaline-manganese orsilver oxide batteries and a light appears by theshutter speed scale in the viewfinder. However,

< When the selector dial is set at the "OFF"position... >No energy will be supplied to the camera's circuitsand the light will not turn on. However, if youforget to turn the selector dial to the "ON" posi-tion and suddenly you press the shutter releasebutton, energy will flow only during the time theshutter is open, and properly exposed photographscan be taken. Once the picture is taken, all cir-cuits are disconnected as a safety measure to pre-vent unnecessary battery consumption.

22

when you are not going to take any more pictures. ends.Turn the rewind release lever when the filmMove the selector dial to the "OFF" position

SWITCHING THE CAMERA OFF REWINDING THE FILM

23

film.and unload theresistance.Open the backKeep rewinding the film until you feel no more

UNLOADING THE FILM

24

THE USE OF THE SELF-TIMER

Click the selector dial to the position "SELFTIMER".Press the shutter release button.

A beeping sound is heard and the self-timerlight blinks. The shutter will be released afterabout 12 seconds.Return the selector dial to its original position.

25

PHOTOGRAPHIC TECHNIQUES

The various functions of the OM-10 andthe wide variety of lenses, flash, winder, andsystem accessories which can be used with itallow you to fully master all the techniques

which automatic photography canmake possible.

We shall devote the following sectionto some of these photographic

techniques.

26

CONTROLLING THE EXPOSURE

When taking pictures in a place which is eithertoo dark or too bright, even if you follow theaperture guidelines given on page 17, there willbe a tendency to result in whitish photographs(overexposure), or darkened ones (underex-

posure), or even blurred images. In these circum-stances, make full use of the aperture ring in orderto control exposure so as to obtain properly ex-posed photographs.

When a red light turns on in the red zone atthe top of the shutter speed scale in the view-finder it indicates overexposure.In such a case, turn the aperture ring to thehigher f-numbers (toward F16) until the lightappears within the proper exposure range, and

then proceed to take the picture.When the light appears below "30" (1/30 ofa second), blur may easily occur.In this case, use a tripod or turn the aperturering to the lower f-numbers (toward F1.8)until the light goes higher within a range in

27

When photograhing fast moving subjects, there isa marked tendency to obtain a blurred image ofthe subject. This can be made use of as a techni-que to give the impression of movement, by inten-tionally allowing the image to be blurred, whilemaking use of the shutter speed priority function.

Pictures taken with this technique offer an inter-esting challenge. Turn the aperture ring until thelight in the viewfinder appears by the shutterspeed value suitable for the photographic situa-tion, and then press the shutter release button.

which blur is not likely to occur.When the light appears at "1" (1 sec.), theshutter speed is 1 sec. or longer. In such a caseit is recommended to turn the aperture ring tothe lower f-numbers within the proper ex-posure range.

PHOTOGRAPHY WITH SHUTTER-SPEED PRIORITY

28

When shooting against the light, or if the subjectis standing before a window, the face tends to ap-pear dark on the image. In this case, use the ex-posure compensation dial to obtain a correctlyexposed photograph.

Lift the compensation dial and change thefilm speed set on the dial (within ±2).By this means, it is possible to obtain high orlow key effects. (+) is for high key (overex-posure) and (—) is for low key (underex-posure). However it is not possible to obtain(-) compensation for ASA 1600 or the (+)

Before com-pensation

Compensated+2 full stops.

(For example, ASA 100 compensated +2 full stops.)

compensation for ASA 25.When you finish taking the picture, return thecompensation dial to its original position.

EXPOSURE COMPENSATION

29

LONG EXPOSURES

Indoors when it is dark, or when photographingat night, use the "BULB" setting and take thepictures by resorting to long exposures. Of course,blur can easily occur in long exposures so it is re-commended to use a tripod and a cable release.

Set the mode selector lever to B, and press theshutter release button.The shutter will remain open as long as theshutter button is being pressed.Do not forget to reset at the "AUTO" positionafter you finish taking pictures.

(Continued on page 49)

30

FLASH PHOTOGRAPHY

ElectronicFlash T32

ElectronicFlash T20

The T32 and T20 electronic flash units specifi-cally designed for OM cameras provide artificialillumination when you take pictures at night or

indoors.< Characteristics of flash photography using theT32•T20 >

Mount the Electronic Flash T32 (or T20) onthe accessory shoe of the camera. When theON-OFF switch of the T32 (or T20) is turnedon, the normal auto flash control begins work-ing. When turned off, it reverts to the camera'sAE photography. It takes but a flick of afinger to change it from one to the other.When the ON-OFF switch of the T32 (orT20) is turned on, the flash will be automati-cally synchronized at the shutter speed of thecamera.It is possible to verify when the flash is readybecause a full charge signal lights in the view-finder.In addition to the charge signal automaticallylighting at you can refer to the shutter speedindicated by another red light in the view-finder as required by the available light.It is possible to check a correct flash exposurein the viewfinder if the signal light blinks.

(Continued on page 49)

31

32

•

•

USING THE WINDER 2Fast moving subjects, such as in sports, car racing,and the like, make you wish to take pictures at afaster pace.The time spent winding the film may mean that agreat chance is lost. In these cases, an accurate,reliable power winder for automatic film windingcan well be the perfect answer, such as theOlympus Winder 2 which can be attached on theOM-10 very simply, and switched to the single orsequence mode photography. On single mode, itcan wind film immediately after exposure, readyfor next chance to release the shutter at any mo-ment, and on sequence mode, it can make sequen-tial filming as fast as 2.5 frames per second.

(Continued on page 49)33

34

FROM GENERAL PHOTOGRAPHY TO THE USE OF INTERCHANGEABLE LENSES

The main characteristic of the single lens reflexcamera is the possibility of using a plurality ofdifferent lenses on the same body. From photo-graphy with a standard lens to the feeling obtain-ed with a telephoto lens by blurring the back-ground or, on the other hand, by stressing theperspective, giving a special effect to the back-ground by means of a wide angle lens, the worldof images which unfolds before you with theOM-10 becomes richer and wider. Olympus Zui-ko interchangeable lenses included in the OMSystem are highly reputed for their sharpness andresolving power.

Wide angle 28mm

35

Telephoto 200mm

36

MAKING USE OF THE DEPTH OF FIELD

When you have a subject in focus, there is a rangein the fore and the background which is clearlydefined in the picture. This range is called depthof field. The larger the F number becomes, thewider this clearly defined range becomes, andthe background becomes sharper. On the con-trary, the smaller the F number becomes, thisrange becomes less wide, while the backgroundloses contrast and out of focus. By using theseproperties of the depth of field with creativityand imagination, you will be able to take pic-tures which will have your own personal im-print.

37

< How to check the depth of field >

The photograph is focused at a distance ofabout 4m (13 ft).In this case, if the aperture is set at F 4, therange which appears clearly defined will beapproximately from 3m (10 ft) to about4.5m (15ft).If an F16 is used, the range will be approxi-mately between about 2m (6.6 ft) and 10m(33 ft).

When you want to check inside the viewfinderthe correct focusing range, it simply requirespressing this preview button.

38

MANUAL EXPOSURE CONTROL

When the optional Manual Adapter is attached tothe OM-10, it is possible to revert to manual ex-posure control. When photographing fast movingsubjects, when there is a possibility of camerashake, or when you want to capture the subjectin its natural tones no matter what the illumina-tion behind may be, this accessory proves to bevery useful. In order to control exposure in sucha way as to obtain special effects to match thephotographic situation or your own intentions,you must rely on your own expertise and practice.In photography with manual control of exposure,the mode selector lever must be set at the "MAN-UAL ADAPTER" position.

To use the electronic flash T32 or T20 with theManual Adapter attached on, you must set the

mode selector lever to AUTO and the flash unitautomatically synchronizes at the shutter speedof the camera.(CAUTION) If an electronic flash other than theT32 or T20 is used with the Manual Adapter,sometimes the shutter is not released at the speedyou set on the Adapter due to the noise of theflash.

39

Shutter-speed priority at 1/1000 sec.

< When shutter-speed priority is advisable >Set the necessary shutter speed in the ManualAdapter.Turn the aperture ring while looking throughthe viewfinder until the light on the shutterspeed scale turns on at the shutter speed whichwas set in the Manual Adapter. Then, pressthe shutter release button.

Aperture priority, high keyed

< How to apply aperture priority to your photo-graphic needs >

Set the aperture as preferred.Look through the viewfinder to see the shut-ter speed which the light indicates, and setthat speed in the Manual Adapter. Then, pressthe shutter release button.* By intentionally ignoring the indicated shut-

ter speed, and setting a different one in theManual Adapter it is possible to obtain highkey or low key results as desired.

40

TABLE OF INTERCHANGEABLE LENSES

MC stands for multicoating.Picture image may be cut off slightly when OM-10 is used with the 600mm and 1000mm lenses.Automatic correction design against close distance aberrations.Make it a point to use the Zuiko MC Macro 135mm F4.5 with the hood provided.

TYPE

FISHEYE

SUPER WIDEANGLE

ANGLE

STANDARD

ZOOM

TELEPHOTO

SUPERTELEPHOTO

SPECIAL USE

INTERCHANGEABLE LENSES

ZUIKO FISHEYEZUIKO MC FISHEYEZUIKO MC

ZUIKO MCZUIKO MCZUIKO MC

ZUIKO MC

ZUIKO MCZUIKO MCZUIKO MCZUIKO MCZUIKO SHIFTZUIKOZUIKO MC

ZUIKO MCZUIKO MC MACROS ZUIKO ZOOMZUIKO MC ZOOMS ZUIKO MC ZOOMZUIKO ZOOM

8mm F 2.816mm F3.518mm F3.521mm F2

21mm F3.524mm F2

24mm F2.828mm F228mm F2.835mm F235mm F2.835mm F2.855mm F1.250mm F1.4

50mm F1.850mm F3.5

28-48mm F435-70mm F3.635-70 mm F4

75-150 mm F4S ZUIKO ZOOM 100-200 mm F5ZUIKO MC ZOOMZUIKO MC

ZUIKO MCZUIKO MCZUIKO

ZUIKO MCZUIKO MC

ZUIKO MC

ZUIKO MCZUIKO MC

ZUIKO MC MACRO

ZUIKO MC MACRO

85-250mm F585 mm F2

100mm F2.8135mm F2.8

135mm F3.5180mm F2.8200mm F4

200mm F5300mm F4.5400mm F6.3600mm F6.5

1000mm F1120mm F3.538mm F3.5

ZUIKO MC 1:1 MACRO 80mm F4

ZUIKO MC MACRO 135mm F4.5

ANGLE OF VIEW

180° (circle)180°100°92°

92°84°

84°

75°75°63°63°

63°(83° at max. shift)43°47°

47°47°

75°-49°63°- 34°63°-34°32°- 16°24°-12°29°-10°

29°24°

8°4°2°

12°

8°

4°2.5-

9° at highest mag.9° at highest mag.

9° at highest mag.18°

OPTICALCONSTRUCTION

ELEMENT-GROUP

11–711–811–9

11–97–7

10–88–7

9–87–68–77–68–77–67–66–4

5–4

8–810–87–7

15–119–6

15–115–45–5

5–45–55 – 4

6–5

6–45–56–45–54 – 35–4

6–45–4

F-STOP

RANGE

2.8-223.5 223.5-16

2-163.5-16

2-162.8-16

2-162.8-22

2-162.8-162.8-221.2-161.4-16

1.8-163.5-22

4-223.6-22

4-224-225-325-322-16

2.8-22

3.5-222.8-32

4-325-32

4.5-326.3-326.5-3211-45

3.5-16

3.5-164-32

MIN,

FOCUS

0.2 m0.2 m0.25m0.2 m

0.2 m0.25m

0.25m

0.3 m0.3 m0.3 m0.3 m0.3 m0.45m0.45m

0.45m0.23m0.65m0.8 m0.75m1.6 m2.4 m2 m0.8 m1 m1.5 m1.5 m

2 m2.5 m2.5 m

3.5 m5 m

11 m30 m

(ft)

(0.7)(0.7)

(0.8)(0.8)

(0.7)(0.8)

(0.8)

(1.0)(1.0)

(1.0)

(1.5)

(1.5)

(1.5)(0.8)

(2.0)(2.7)(2.5)(5.2)(7.9)(6.0)

(2.8)(3.3)(4.9)

(4.9)(6.0)(8.2)

(8.2)

(11.5)

(16.4)(36.1)(98.4)

W/Auto Bellows & PM-MT obW/Auto Belows & PM-MT obW/65~116 or Auto Bellows

WEIGHT (oz.)

640g(22.6)180g (6.3)250g (8.8)

250g (8.8)180g (6.3)275g (9.9)185g (6.5)245g (8.5)1708 (6.0)240g (8.5)175g (6.2)310g(10.9)310g(10.9)

230g (8.1)165g (5.8)

200g (7.1)300g(10.6)420g(14.8)385g(13.6)445g(16.1)570g(20.1)905g(31.9)

260g (9.5)235g (8.3360g(12.7)

290g(10.2)700g(24.7)515g(18.2)

385g(13.6)1020g(35.0)1300g(46.0)2800g(98.8)4150g(146.5)

70g (2.5)

90g (3.2)

170g (6.0)

LENGTH

83mm31mm43mm44mm31mm48mm31mm

43 mm32 mm43mm33mm59mm48mm

40mm32mm40mm

54mm74mm

71 mm115mm148mm196 mm48mm48mm

80mm73mm

125mm127mm

105mm

181mm256 mm377mm662mm

20mm28mm31mm

FILTER

Built-inBuilt-in72mm55mm

49mm55mm

49mm49mm49mm35 mm49mm49 mm55mm49mm

49mm

49mm49mm55mm55mm49mm49mm55mm49mm

49mm55 mm49 mm72 mm

55 mm49 mm

72mm72mm

100mm100 mm

21mm Slide-on32mm Slide-on

49mm55 mm Slide-on

TELECONVERTER 2X-A APPLICABLE LENSES : 100mm F2.8, 135mm F2.8. 135mm F3.5, 200mm F4. 200mm F5. 100-200mm F5 OPTICAL CONSTRUCTION : 6-6 WEIGHT : 215g(7.6oz) LENGTH : 48mm(1.9")

(Specifications subject to change without notice.)

ZUIKO MC ZUIKO MC

(1.0)

(1.0)

42

CARE AND STORAGE OF THE CAMERA

GeneralDust and moisture are primary harmful agentsaffecting your camera. When you do not usethe camera, remove it from the case and storein a dry, ventilated place, making sure that theshutter is set free from tension and the selectorlever at the OFF position.When storing the camera for a long period oftime, remove the batteries. Wipe all battery sur-faces with a dry cotton cloth before re-insert-ing them into the camera.Avoid dropping or hitting the camera.Never store the camera where temperatures ex-ceed 50°C (122°F). When you use the camerain temperatures under — 20°C (—4°F), it maysometimes fail to operate properly. To avoidthis, warm the camera before use. Protectagainst excess moisture by using silica gel orother desiccant.Generally speaking, a battery voltage may bereduced when an ambient temperature lowers.As the batteries that activate the camera at nor-mal temperature regularly, sometimes fail to inlow temperature, it is recommended to use fresh

batteries in a cold district.Take care not to permit water to enter the cam-era when taking pictures in the rain or snow, es-pecially near sea-water spray, as water dropsmay easily have a chance to enter the camerathrough small orifices.After use near the ocean, wipe the camera sur-faces clean with a soft cloth; never leave salt onthe camera. (Salt may be airborne near theocean and collect on the camera even though ithas not been in direct contact with water.)Avoid areas exposed to salt water, radios, TVsets, or magnets.Have all repairs performed by an authorizedOLYMPUS Service Center. You may send itdirectly or through the store where you boughtyour camera.

PartsDo not press the release button at random.Do not touch any part that moves at high speedsuch as the shutter, instant return mirror, dia-phragm, etc.Avoid touching the surfaces of the lens. Clean

43

only with an air brush, antistatic brush, or wipeit lightly with a camel hair brush or lens tissue.In EXTREME cares, use a clean, soft cottoncloth moistened with denatured alcohol. NEV-ER rub the lens surfaces with your finger, cloth-ing or other abrasive material.If dust or fingerprints collect on the mirror,focusing screen, or prism, take the camera toan authorized OLYMPUS Service Center. Itneeds professional attention.Avoid excessive force when mounting on atripod.

44

QUESTIONS AND ANSWERS

Q : I can neither release the shutter even by press-ing the shutter release button, nor advancethe film. Why?

A : Because no batteries are loaded. Load freshbatteries.

Q : Why is the field of view dark and the imageobscure?

A : Because the batteries are exhausted. Replacethem.

Q : Why can't I move the film advance lever?A : The self-timer may be set, or the shutter re-

lease may be cocked and ready but it hasnot been pressed yet. If you press the shut-ter release button, film will advance to thenext frame. Has the film reached its end?Check the exposure counter and, if it showsthat the film has ended, rewind the film. Arethe alkaline-manganese or silver oxide bat-teries charged? Check the batteries, and ifyou hear the beeping sound and see the redlight flashing, but cannot move the lever,take your camera to an authorized OLYM-PUS Service Center.

Q : Why doesn't the rewind knob rotate when I

try to advance the film?A : The film leader is not properly engaged on

the film take-up spool. Insert the film leaderagain.

Q : Why won't the rewind crank turn?A : Set the rewind release lever once more in

the direction of the arrow, and the problemwill be solved.

Q : Is infrared photography also possible withthe OM-10?

A : Yes, it is if you use the manual adapter andset the mode selector lever to the MANUALADAPTER position. Then, take the follow-ing steps: Focus without a filter. Movethe focusing ring to coincide with the infra-red mark. Mount a filter for infrared photo-graphy, and proceed to take the picture.

Q : When should I check the batteries?A : When new batteries are inserted.

After the camera has been stored for along time.When you think batteries may be ex-hausted.The alkaline-manganese batteries should

45

last for about a half year, and the silveroxide batteries for about one year.When the temperature is extremely low.

Q : I pressed the shutter release button with theselector dial at the "OFF" position. Will thephotograph be properly exposed?

A : Even at the "OFF" position, the camera'scircuits will be activated for a proper ex-posure. Recommended to develop the filmand see.

Q : When set at the "AUTO" position, the actualshutter speed is much slower than the oneindicated in the viewfinder. Why does thishappen?

A : If film is not loaded or the film surface isnot properly positioned behind the shutter,the speed will be slower than that indicatedin the viewfinder.

Q : What batteries should I use?A : Use two 1.5V alkaline-manganese batteries

LR44 (A76) or two silver oxide batteriesSR44 (Eveready EPX-76 or equivalents).Batteries of a different type (1.3V mercurybatteries) cannot be used, though they may

be of the same size.Q : A shadow appears darkening the central area

of the viewfinder. Why does this happen?A : This is quite usual when a lens with a maxi-

mum aperture smaller than F5 is mountedon the camera, and the preview button ispressed with the diaphragm closed downbeyond F5. There is nothing wrong withthe microprism.

Q : If I return the selector lever to the ON posi-tion, while the self-timer in operation, whatwill become of the shutter?

A : The shutter will be released. After the use ofthe self-timer, make it a point to return theselector lever to original position.

Q : While I was operating the Winder 2, the lightin the viewfinder went out... why?

A : The light goes out in 90 sec. even the selectorlever is ON, in order to save the batteries fromunnecessary consumption. Touch the ac-tivator switch lightly, and the light is onagain.

46

MAIN SPECIFICATIONS

Camera type: 35mm single lens reflex camerawith electronic control automatic exposureand focal plane shutter.

Image format: 24 x 36mm.Lens mount: Olympus OM Mount, bayonet type.Shutter: Electronically controlled focal plane

shutter.Flash synchronization: X contact. Direct contact

only.Automatic exposure control: Aperture-priority

electronically controlled shutter. TTL directlight measuring system. Light measuring range:EV-0.5 to 18 from 2 sec. to 1/1000 sec. atnormal temperatures and humidity with ASA100 and F1.2 standard lens.Exposure compensation: ±2EV.Automatic flash exposure: Normal auto flash(at 2 aperture settings F4 and F8 with ASA100 film) is automatically set to X synch. (1/60 sec.) in conjunction with the electronicflash T20.

Manual exposure control: The optional ManualAdapter attached to the OM-10 permits a fullrange of 11 manual shutter speeds. (1 to 1/

1,000 sec.)By setting the mode selector lever to the man-ual mode, the shutter speed can be set to 1/60sec.

Film speed range: ASA 25 to 1600.Battery checker: Battery voltage can be checked

by both LED and PCV. Mirror lock to limitdrainage.

Power source: Two 1.5V alkaline-manganese bat-teries LR44 (A76), or two 1.5V silver oxidebatteries SR44 (Eveready EPX-76 or equiva-lents).

Viewfinder: Pentaprism type.Focusing screen: Microprism/sprit image-matte

type.Finder view-field: 93% of actual picture field.Viewfinder magnification: 0.92X with the 50mm

lens at infinity.Viewfinder information: 12-step shutter speed

scale and flash charge indicated by LEDs.Mirror: Oversize, quick return mirror.Film advance: Lever type with 130° angle, It

can be wound with one long or several shortstrokes. 30° pre-advance angle. Power wind-

47

ing is possible with the Olympus OM SystemWinder 2.

Self-timer: Electronic self-timer with about 12second delay.

Accessory shoe: Built-in type, with direct contact.Dimensions and weights: Body only: 135(W) x

84(H) x 50(D) mm (5.3" x 3.3" x 2") 430gr.(15.2 oz)With F1.8 lens: 135(W) x 84(H) x 81(D)mm(5.3" x 3.3" x 3.2") 600gr. (21.2 oz).With F1.4 lens: 135(W) x 84(H) x 86(D)mm(5.3" x 3.3" x 3.4") 660gr. (23.3 oz).

(Specifications subject to change without notice.)

48

Long Exposure(From page 30)

For long exposure photography within 2 sec.(with ASA 100 film) however, you can takepictures on AUTO mode.

Flash Photography(From page 31)(CAUTION)

If any electronic flash other than the T32 andT20 is used, set the mode selector lever to the"MANUAL ADAPTER" position. (If the modeselector lever is set to "AUTO", the shutterspeed responds to available light and may some-times not synchronize with flash.)In this case, the viewfinder does not indicatethe full flash charge and correct flash exposure.For further information, refer to the instruc-tion manual supplied with your electronic flashunit.If an electronic flash is used while the optionalManual Adapter is attached, set the shutterspeed at 1 /30 sec. or slower. For details, readthe instruction manual supplied with the Man-ual Adapter.

Using the Winder 2(From page 33)It is not possible to use a Motor Drive 1 with theOM-10.The viewfinder lights may turn off when usingWinder 2 with your OM-10. This is due to thespecial energy saving circuits built into the OM-10.Simply touch the activator switch (collar sur-rounding the shutter release), and the lights willturn on. See page 22 for further explanation.

49

0894. 2MM

OLYMPUS OPTICAL CO., LTD.

OLYMPUS AMERICA INC.

OLYMPUS OPTICAL CO. (EUROPA) GMBH.

OLYMPUS OPTICAL CO. (UK.) LTD.