Canon – AT-1 – User Manual

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Congratulations upon the purchase of
your new Canon AT -1, a remarkably
advanced camera that reflects the latest
trends in SLR photography. As a
flawless product of Canon technology,
its vast potential as a rewarding means
of expression is assured for years to
come by an incomparable system of
fine lenses and accessories.
At an extremely reasonable price, the
Canon AT-1 offers you TTL Central
Emphasis Metering plus many of the
superb advantages enjoyed by users of
its all-electronic counterpart, the Canon
AE-1. Its fabulous electronic system
consisting of the Power Winder A for
continuous rapid-fire shooting, the
Speedlite 155A for perfectly synchro­
nized flash shooting and the Data Back
A for automatic data imprinting give
the AT-1 unsurpassably versatile per­
formance. Similarly, you have the
entire system of superior FD inter-
changeable lenses at your disposal
which enable metering at full aperture.
But perhaps most conspicuous is the
absence of mechanical noise that is
characteristic of conventional SLRs.
The AT -1 incorporates a wonderfully
silent electromagnetic release, in
addition to a 10-second electronic self­
timer, for perfectly vibrationless
operation. Moreover, you will surely
find the Canon AT -1, with its
extremely compact and lightweight
body to be one of the easiest to operate
cameras ever.
In order to derive full benefit from the
many features the AT -1 affords, please
take the time to read and understand
the following instructions. Canon
remains always ready to lend you its·
support in the future with a system of
lenses and accessories unequaled the
world over. Distance Scale (in feet and meters)
Canon Breech-Lock Ring
Flash
Film Rewind Crank
Main Switch (Battery Check Lever)
Film Plane Indicator
Focusing Ring
Depth-of-Field Scale
F———” A” Mark
Battery Chamber Cover
a.:-…:::— Finger Grip
Film Speed
iiIiii …. ~`—Set Ring
ASA Film
Speed
.,,..–:,nlutter Speed
Dial
Film Advance Lever
Electronic Self-Timer Lever
(Shutter Release Lock)
Accessory Shoe
utomatic Flash Contact
Synchronization Contact
While reading the instruction booklet, unfold this flap and the flap on the back cover to facilitate your
understanding of the instructions. 4
PICTORIAL OUTLINE FOR USING THE CAMERA
1
Load the battery.
Turn the main switch on.
5
Look into the viewfinder.
Compose the picture and focus.
Out of Focus In Focus
2 Load the film.
6
Determine the exposure by adjusting
the shutter speed dial and the aperture
ring. 3 Set the ASA film speed .
4 Advance the film.
7 Press the shutter button.
5 6
Photography with the Canon Speed lite
155A
1. Take off the battery chamber cover and
load the batteries.
2. Set the ASA film speed of the 155A.
3. Mount the Speedlite 155A on the acces·
~ory shoe of the camera.
4. Turn the main switch on.
5. Set the AUTO/MANU. switch.
6. Set the prescribed f/stop on the lens.
7. Focus and press the shutter button.
Photography with the Canon Power
Winder A
1. Remove the Battery Pack A.
2. Load the batteries into the Battery Pack A.
3. Attach the Battery Pack A to the Power
Winder A.
4. Take off the winder coupler cover on the
bottom of the camera body and put it in
the winder coupler`s cover holder.
5. Attach the Power Winder A to the`
camera.
6. Turn the main switch on.
7. Focus and press the shutter button. CONTENTS
SPECIFICATIONS …… . . . ….. 8·10
Handl ing the Case and Lens Cap …. 12-13
Mounting the Lens . . . . . . . . . . . . . . . 13
loading the Battery and Main Switch .. 14-15
Checking the Battery. . . . . . . . . . . . .. 16
Film Advance and Shutter Release. . . 17-18
Loading the Film . … ……. . .. 19-20
Frame Counter . . . . . . . . . . . . . . . . . . 21
Setting the ASA . . . . . . . . . . . . . .. 22-23
OPERATION FOR GENERAL
PHOTOG RAPHY . . . . . . . . . . . . . . . . 25
Selecting the Shutter Speed …. … 27-28
Lens Aperture …….. .. . . …. . . 28
Viewing and Focusing . . . . . . . . . . . .. 29
Dioptric Adjustment Lenses . . . . . . . .. 30
Viewfinder Information . . . . . . . . . . . . 32
Determining the Exposure . . . . . … . , 33
Meter Coupling Range . ………. `.. 35
Holding the Camera . . … . …. .. . . 37
Releasing the Shutter and
Rewinding the Film …….. . … 38-39
DETAILED OPERATION OF
THE AT-1 ….. . . . . .. … .. . . . . 41
Effects of Changing the Shutter Speed
and the Aperture … . . .. … . .. . 43-44
Depth-of-Field . . . . . . . . . . . . . . .. 45-46
Using the Self-Timer … . .. .. .. . . 47-48
Flash Photography with the AT-1 . .. .. 49
Long Exposures . . . . . . . . . . . . . . . .. 50
Stopped-Down Metering .. . . .. . .. . .. . 52
Manual Aperture Control . . . . . . . .. 53-54
Lenses . .. . .. …. . . ……… 55-58
ACCESSORIES, CARE OF THE
CAMERA, MAINTENANCE, AND
MISCELLANEA . . . . . .. .. . … . . . 59
Canon Speedlite 155A . . . . . . . . . . . .. 61
Canon Power Winder A .. . . . . . . . . .. 62
Canon Data Back A and Bellows FL . . .. 63
Other Accessories . . . . . . . . . . . . .. 64-65
Care and Storage of the Camera . … . 67-69
7 8
SPECIFICATIONS
Type: 35mm SLR (Single- Lens-Heflex)
Camera with focal plane shutter.
Picture Size: 24 x 36mm
Interchangeable lenses: Canon FD series
lenses for full aperture metering_ Canon
F L series lenses for stopped-down
metering.
Standard Lenses: Canon FD 55mm f/l.2
S.S.C.
Canon FD 50mm f/l.4 S.S.C.
Canon FD 50mm f/l.8 S.C . .
Lens Mount: Canon Breech-Lock Mount.
Canon FD, FL, and R lenses can be
mounted for use.
Viewfinder: Fixed eye-level pentaprism.
Field of View: 93.5% vertical and 96.3%
horizontal coverage of the actual picture
area.
Magnification: 1 :0.82 at infinity with a
standard 50mm lens.
Dioptric Adjustment Lens S: Standard -1
diopter.
Interchangeable with +3, +2, +1.5, +1,
+0.5, 0, -0.5, -2, -3, and -4 diopters.
Focusing Screen: Split-image/microprism
rangefinder surrounded by matte screen
Viewfinder Information: Meter needle and
aperture needle (circular index) are seen
on the right hand side of the viewfinder.
On the upper right hand is an over­ exposure/battery check index mark and
on the 10l(ller right hand is a metering
limit index mark on the underexposure
side.
Viewfinder Attachments: Angle Finder A2
and B, Magnifier S, Dioptric Adjustment
Lens S (10 kinds), and Eyecup 4S.
Mirror: Instant-return, large reflector mirror
with shock absorbing mechanism .
Exposure Meter: Built-in. Using CdS photo­
celL Coupled to shutter speeds, film
speeds, and f/stops. Match needle type,
TTL full aperture metering mechanism.
Light Metering System: TTL (Through-The­
Lens) Central Emphasis Metering method
Exposure Meter Coupling Range: EV 3 (f/l.4
at 1/4 sec.) to EV 17 (f/16 at 1/500
sec.) at ASA 100 film with FD 50mm
f /1.4 S.S.C. Lens.
Film Speed Range: ASA 25 to ASA 3200 Shutter: Cloth focal plane shutter with four
spindles. Shock and noise damping
mechanisms are incorporated. All shutter
speeds are electronically controlled.
Shutter Speeds: 1/1000, 1/500, 1/250,
. 1/125,1/60,1/30,1/15,1/8,1/4,1/2,1,
2 (seconds) and B.
X synchronization is at 1/60 seconds.
Shutter Speed Dial: The shutter speed dial is
on the same axis as the film advance
lever. The number 2 for two seconds is
marked in orange; other numbers as well
as X synchronization are in white. There
is a shutter dial guard to prevent uninten­ tional movement of the dial. The ASA
dial is located underneath the shutter
speed dial.
Self-Timer: Electronically controlled self­ timer. After the self-timer lever is pushed
forward, the self·timer is activated by the
shutter release button. The self·timer
releases the shutter after a time lag of 1 0
seconds. A self-timer LED lamp blinks on
and off when the self-timer is in
operation. The self-timer operation can
be cancelled while in operation.
Stopping-Down the Lens: Stopping-down
the lens can be performed by pushing the
stopped-down lever after setting the
aperture ring.
Power Source: One 6V silver oxide battery;
Eveready No. 544, UCAR No.544, JIS
4G 13, and Mallory PX28. The battery
lasts the equivalent of 20,000 shutter
releases, or one year under normal use .
Battery Check: Battery power level can be
checked by the meter needle inside the
viewfinder ·when the main switch is
turned to the battery check index mark
“e”,
Flash Synchronization: X synchronization
is at 1/60 sec. M synchronization is at
1/30 sec. and below.
Flash Terminal: The accessory shoe has a
direct flash contact and automatic flash
control contact. On the front of the
camera body is the flash terminal, JIS·B
type for flash units with a cord. It has a
built-in protective rim to prevent elect­
rical shock.
Automatic Flash: With the Canon Speedlite
155A, set the aperture to the prescribed
Q 10
f/stop, and the amount cif light is auto­
matically controlled for correct flash
exposure, adjusting the shutter speed to
1/60 of a second automatically.
Back Cover: The camera`s back cover has a
memo holder for your convenience. The
cover can be removed for attaching the
Canon Data Back A.
Film Loading: Performed by pulling up the
rewind crank to open the back cover.
Easy film loading with multi-slot take-up
spool .
Film Advance Lever: Single stroke with 120
0
throw and 30
0
stand-off. The film can be
wound with several short strokes. The
Canon Power Winder A can be mounted
for automatic winding of the film.
Frame Counter: Additive type. Automatical­
ly resets when the back cover is opened.
While rewinding film, it counts back the
frame numbers.
Film Rewinding: Performed by pressing the
rewind button on the bottom and by us­ ing the rewing crank on the top. The
rewi nd button is automatically reset
when the film is advanced with the film
advance lever.
Size: 141 x87x47 .5mm (5-9/16″x -3-7/16″
x 1-7/8″) body only.
Weight: 590g (20-13/16 OlS.) body only.
790g (27-7/8 OlS.) with the 50mm f/1 .8
S.C. lens.
895g (31-9/16 OlS . ) with the 50mm f/ 1.4
S.S.C. lens.
1,100g (38-13/16 OlS.) with the 55mm
f/1.2 S.S.C. lens.
Subject to change without notice. 12
PRELIMINARY PREPARATION
Neckstrap and Case
Slide the scratch prevention ring and
spare battery case wh ich houses a spare
battery onto the Canon AT-1 `s neckstrap,
then th read the neckstrap through the rings.
Adjust the neckstrap to a length most suitable
for you.
Firmly attach the case to the camera by
turning the screw on the bottom of the case.
When you wish to take off the top cover of
the soft case, turn the top cover to the
bottom then sl ide it straight up in the direc­ tion of the arrow and pull it out as indicated
in the photo. Handling the Lens Cap
The lens cap can be removed from the
front of the lens after pressing in the tabs on
both sides of the cap. The rear dust cover can
b~ removed by turning the Canon Breech­
Lock ring in the direction of the arrow. To
attach the dust cover, align its slot with the
positioning pin below the red dot of the
Breech-Lock ring, and press it in. When the
dust cover is removed, the Breech-Lock
ring is locked.
Mounting the Lens
Remove the body cap. Make sure that the
aperture ring is not set to the “A” mark
before mounting the lens. Release the
aperture ring from the “A” mark by pushing
the EE lock pin and turn the ring. Then,
mount the lens by aligning the red dot of the
body with the red dot of the bayonet ring,
and then turning the Breech-Lock ring clock­
wise, pressing gently until it locks into
position. Reverse the procedure to dismount
the lens.
13 14
Loading the Battery
The camera will function only when the
battery is loaded and the main switch is turn­ ed on . Use a silver oxide battery for the power
source. The battery chamber cover can be
opened more easily by using the viewfinder
cover that is inserted into the accessory shoe.
Be careful to load the battery correctly
with the “+” side up following the diagram on
the inside of the battery chamber. If the bat­ tery is incorrectly loaded so the polarities are
facing the wrong direction, the camera will
not function. Load the battery by inserting
the “-” contact first while holding down the
battery in the bottom of the battery chamber.
When loading or removing the battery, make
cartain that the main switch is set at OFF.
• Only a silver oxide battery can be used
and other types cannot be used. In general
use, the battery will last one year. Main Switch
The main switch turns on or off the elect­
ric circuits of the camera. Therefore, when
taking photographs, set the main switch to the
“.ON” position . The camera will not function
unless it is set to “ON”.
• When not in use, turn the main switch to
“OF F” to guard against needless consumption
of the battery.
Usable Batteries
Silver Oxide I Eveready(UCAR) No.544
Battery( 6V) JIS 4G13, Mallory PX28
Perform a battery check in the follow­
ing situations:
,. When a battery is loaded.
2. If the shutter does not function.
3. When a great number of photographs
have been taken.
4. When the camera is used after it has been
stored for a long period without use.
5. When the camera is used in extremely
cold conditions.
As the AT-` is an electronically con­
trolled camera, the shutter will not function
without sufficient battery power.
15 Meter Needle
Insufficient
16
Checking the Battery
The main switch is also used for checking
the battery. To see if the battery power
level is sufficient, turn the main switch/
battery check lever to the “C” index on the
outer rim of the film rewind, crank while
looking into the viewfinder. If the meter
needle rests above the battery check index
mark or coincides with the index as shown
in the illustration, the power level of the
battery is sufficient. If the needle does not
rise to the index, the battery must be
changed.
• If the meter needle fails to stabilize with·
in about three seconds, the battery is near
exhaustion and should be changed. Film Advance and Shutter Release
Turn the film advance lever until it stops,
so the film will advance one frame all in one
motion. The shutter will cock, and the dia·
phragm and mirror will be ready for the next
shutter release, while the frame coullter
advances simultaneously to the next number.
By pushing the film advance lever lightly with
the tip of your thumb, it will open to its 30°
stand-off position away from the camera body
for easy film advance.
While the film is advancing, the shutter will
not be released. Film winding can also be
accomplished by advancing the lever in short
strokes.
Canon has developed the Power Winder A
to be used with the AT-` for automatic film
winding. It greatly increases the speed and
mobility of the AT-`. (See page 62.)
17 18
Shutter Button and Shutter Lock
The magnetic release shutter button
enables smoother shutter release than the
mechanical release method does. There is also
less chance for camera shake.
When the shutter lock lever around the
shutter release button is turned to the “L”
position, the shutter button will be locked to
prevent unintentional shutter release. Keep
the shutter release button locked while
carrying the camera to prevent film waste.
When the power level of the battery is
insufficient, a safety mechanism will keep the
shutter from being released.
• At temperatures under -20 degrees C,
there may be an occurrence when the shutter
will not be released depending on the
batteries, even if the battery power is suf·
ficient. In that cold condition, the battery`s
power is reduced so. some 10 seconds should
be allowed after the battery is checked before
taking a picture. Loading the Film
The Canon AT-l uses color or black and
white film in standard 35mm cartridges.
Opening the Back Cover
. To load a cartridge of film into the
camera, first open the camera`s back cover.
Pull up the rewind crank and the back cover
will pop open. The back cover can be securely
closed simply by pressing it until it locks.
Avoid direct sunlight when loading or un­
loading the film.
The Canon Data Back A, an accessory for
imprinting data such as the day, month and
year, can be attached to the AT-l in place of
the back cover. (See page 63.)
How to Load the Film
Put the cartridge into the film cartridge
chamber and press down while rotating the
rewind knob until it drops securely into
position. The protruding part of the cartridge
should be on the bottom. Pull the film leader
across and insert the end into one slot of the
multi-slot take-up spool. Turn the film ad­
vance lever and wind the film around the
19 20
take-up spool making sure that the perfora­ tions of the film are engaged in the teeth of
the film transport sprocket.
Then, make sure that there is no film
slack. In case there is, gently turn the film
rewind crank in the direction of the arrow to
obtain proper film tautness and the film ad­ vance lever to ensure that the leader is wound
fully on to the take-up spool before the
camera back is closed.
When loading the film into the camera,
do not touch the shutter curtain, the film rails
or the pressure plate.
Closing the Back Cover
Close the back cover until it snaps shut.
Gently turn the film rewind crank clockwise
in the direction of the arrow to take up the
film slack. Then, advance the film a couple of
times pressing the shutter button until the
first exposure appears in the frame counter.· Frame Counter
The frame counter is an additive type
which counts one frame every time the film
advance lever winds the film. When the
camera`s back cover is opened, the frame
counter automatically resets itself to the “S”
position.
W~ile rewinding film, the frame counter
counts back the frame numbers. The starting
position “S”, 0, and the even numbers 2 to 38
are displayed by the counter. Numbers 20 and
36 are marked in orange to call your attention
to the end of commercially available film
cartridges. The frame counter cannot count
higher than 38.
21 22
Checking Film Winding
Operate the film advance lever while
watching the film rewind knob. If it rotates,
the film is properly loaded. If the rewind
knob does not rotate, open the back cover
and load the film again from the start.
Setting the ASA Film Speed
After loading the film, set the ASA film
speed according to the ASA speed of the film
in use. To set the ASA, first push the film
advance lever out to its 30° stand-off position
away from the camera body, then gently lift
up the ASA ring around the shutter dial and
rotate it in either direction until the proper
number is aligned with the green index mark.
ASA is a numerical rating of a film`s sensitivi­
ty to light. A higher ASA number indicates a
faster film which is more sensitive to light. On
the other hand, a lower ASA number indicates
a slower film which is less sensitive to light.
The ASA rating recommended by the manu­
facturer is printed on the film box, e.g.,
ASA 100. The following ASA ratings can be set on
the camera. Figures in parentheses indicate
intermediate film speeds.
Use of the Memo Holder
The memo holder on the camera :s- back
cover is useful for keeping data like film
speed , location, shooting. For example, after
tearing off the part of the film box which
specifies the type of the film being used , it
can be inserted into the memo holder as a
constant reminder.
36 EXPOSURES
23 Operation for General Photography Shutter and Aperture
The opening of the shutter letting light
in on the film is called an exposure. The
amount of light striking the film is controlled
by the lens aperture, while the length of time
that light is allowed to strike the film is
controlled by the shutter.
Shutter Speed Dial
The shutter dial is used to adjust the
shutter speed. It allows for speed settings in
the range of 2 seconds to 1/1000 of a second.
VVhen the shutter speed is advanced to the
next larger number, the exposure time is cut
in hiM. The shutter speeds on the dial are
typically the reciprocals of the true shutter
speeds. For example, 125 and 250 on the dial
represent shutter speeds of 1/125 and 1/250
of a second . Only in the case of the orange
“2” is the shutter speed actually as indicated
on the dial, i.e., 2 seconds. The “B” (Bulb)
setting is used for long exposures where as
long as the shutter button is pressed down ,
the shutter will remain open.
• The shutter speed dial cannot be set to an
intermediate position.
Brightness
Shutter Speed
(Seconds)
Indoors 1/ 30 to 1/ 60
Outdoors 1 / 125 to 1/ 250
Mid-summer Beach or
1/ 500 to 1/ 1000
Snow·coverd M ountai ns
Selecting the Shutter Speed
Shutter speed is determined in accor­
dance with the brightness of the scene and the
speed with which the main subject is moving.
You can use the above table as a general guide
27 to help you select an appropriate shutter
speed when using a standard 50mm lens. For
indoor photography, with no special illumi­
nation, choose 1/30 of a second` and 1/60 of
a second in a brightly lit room.
For outdoor photography, select 1/125
second when cloudy and 1/250 second in
sunshine. To take pictures in particularly
bright sunshine such as at a beach in mid­
summer or in snow-covered mountains, use
sh utter speeds of 1/500 sec. or 1/1000 sec.
The above mentioned shutter speeds
apply when using a standard 50mm lens, but
it is necessary to choose faster shutter speeds
when using lenses of longer focal lengths
because they are more difficult to hold
steady. It is generally said that the shutter
speed figure should be greater than 1 divided
by the focal length of the lens in order to ob­ tain sharp images.
For example, when using a 200mm tele­
photo lens, shutter speed should be faster
than 1/200 second. Thefefore, the shutter
speed in this particular case should be set at
1/250 sec. Image blur can also arise if the
camera is not properly held . See page 37.
28
Lens Aperture
The adjustment of the aperture is used
with the shutter speed to get the correct ex­ posure. The amount of light reaching the film
is controlled by the aperture`s size.
On the aperture ring are a series of mark­ ings which indicate the proportion of the light
allowed to pass through the lens, which are
known as f/numbers. When the aperture ring
is set to the next larger f/number on the scale
of the ring, the amount of light passing
through the lens is decreased by 1/2. The
lens`s brightness is based on the smallest
numerical aperture value for the lens.
With a f/2 serving as the standard, the com­ parative brightness at each f/stop will be as
indicated below.
Bri gh t ness
(f/ stop )
R atio
5.6 8 11 1 6
1 / 4 1 / 8 1 / 16 1/ 22 1/64
The aperture ring can be set at positions
between the settings on the scale. Viewing and Focusing
Focusing is performed in the small round
area in the center of the viewfinder. The
smaller central circle is a split-image focusing
s~reen and around it is the microprism ring.
The split-image rangefinder ascertains that the
image is “in focus” when the image divided
horizontally in half merges and becomes one
complete image.
The microprism rangefinder presents a
clear and steady image when in focus. The
microprism conveys a broken, shimmering
image when not accurately in focus. It is also
possible to focus with the matte screen
outside the smaller central area. You can
focus with any of these focusing aids as you
like, depending on the subject and your pre­
ference.
Accessories such as an eyecup, dioptric
adjustment lenses, angle finders, and magnifier
can be attached to the viewfinder eyepiece. Out of Focus In Focus
29 30
Dioptric Adjustment Lens S
Dioptric adjustment lenses can be
attached by inserting them from above into
the grooves in the viewfinder eyepiece to
compensate for the individual eyesight. With
them, near-sighted or far-sighted persons can
perform photography without glasses.
The built-in eyepiece lens of the AT-1 has
-1 diopter. The following 10 kinds of
dioptric adjustment lenses are optional acces­
sories : +3, +2, +1.5, +1, +0.5, 0, -0.5, -2,
-3 and -4 (diopters).
One way of selecting the correct dioptric
adjustment lens for you is to select the one
that is the closest to your glasses in regard to
number of diopters. But, we propose that,
to select the most appropriate dioptric ad­
justment lens, you actually look through
the viewfinder after placing it over the eye­
piece.
Because the camera itself has -1 dioptllr,
the diopters of the lenses are recorded as the
real power when attached to the camera, thus
reflecting the power of the camera`s viewfin­ der. Angle Finder A2 and B
The angle finder is a magnifying glass
which can be attached from above into the
grooves of the viewfinder eyepiece. It rotates
~O degrees so that the image on the viewfinder
can be viewed directly from the side or above
whenever it is inconvenient or impossible to
look directly through the eyepiece. This is
very helpful in copying, close·ups, macro­
photography, and photomicrography. There
are two types, the A2 whose image is reversed
as in a mirror, and the more advanced Angle
Finder B wh ich gives a correct image.
Magnifier S
The Canon Magnifier S gives 2.5X magni­
fication of the viewfinder center for precision
focusing in close-up work. The power can be
adjusted to your eyesight within the range of
+4 to – 4 diopters.
The Magnifier S combined with its
adapter can be inserted into the grooves of the
viewfinder eyepiece. The adapter of the
Magnifier S is hinged to allow the magnifier to
swing upward from the eyepiece leaving the
whole screen image visible after focusing.
31 Viewfinder Information
The Canon AT-1 is a camera offering full
aperture metering with FD lenses where the
aperture needle is coupled to the shutter
speed, aperture and film`s sensitivity when FD
lenses are used _ Furthermore, when using
Canon FL lenses on the AT-1, the exposure
reading is performed with stopped-down
metering.
The Central Emphasis Metering method
of exposure measurement is used in the AT-1
to deliver the optimum exposure to the main
subject without being affected by the bright
sky in the upper part of the picture area .
Microprism
c>
Split-Image
Matte
32-~-~~~–
In the center of the viewfinder is a range­
finder while the meter needle and the aperture
needle (circular) are found to the right. The
exposure metering range index marks are in
the upper and lower right. The exposure
metering range index mark in the upper right
is also used as the battery check index mark.
The exposure metering range extends from
EV 3 (f/1.4, 114 of a.second) to EV 17 (f/16,
1/500 of a second) at ASA 100 film with FD
50mm f/l.4 S.S.C. lens.
Battery Check/Overexposure Warnin!
Index Mark
Aperture Needle
..£:l_— Meter Needle
Underexposure Warning
Index Mark Determining the Exposure
Turn the camera toward the subject and
look into the viewfinder to insure that the
meter needle swings and rests still somewhere
between the upper and lower exposure
metering index marks. Then, turn the shutter
speed dial and/or the aperture ring until the
circular aperture needle bisects the meter
needle. These are the steps for getting the
correct exposure. On most occasions, it is
more conven ient to predetermine the shutter
speed then turn the aperture ring.
The upper and lower halves each express half
an f/stop gradation ; the full width of the
Properly Adjusted
aperture needle is equivalent to one f/stop.
Thus, the setting of the meter needle and
aperture needle can be precisely controlled
inside the viewfinder enabling finer adjust­ ment of the exposure .
• Exposure determination (matching
needles) should not be performed while the
shutter button is depressed . It will cause a
sl ight, variable error depending on the
cond ition of the battery .
33 34
Operation of Shutter Priority
1. Turn the main switch on.
2. Set the shutter speed.
3. Look into the viewfinder and focus.
4. Turn the aperture ring and align the
meter needle with the aperture needle.
5. Depress the shutter button.
Exposure Metering With F L Lenses
When Canon F L lenses are used on the
AT·1, it is necessary to take a stopped-down
meter reading. After pressing in the stopped­ down lever until it locks, adjust the aperture
ring and/or shutter speed dial until the meter
needle inside the viewfinder is aligned with
the aperture needle to obtain the correct
exposure. After determining the correct
exposu re, release the stopped-down lever and
compose and focus at maximum aperture . Meter Coupling Range
If the circular aperture needle does not
align with the meter needle by turning the
aperture ring, it means that the shutter speed
is not properly set. If this is the case, reset
shutter speed dial so that two needles can be
aligned with each other. And when these two
needles cannot be aligned with each other by
turning the shutter speed dial, change the
aperture. When the shutter speed is set at a
slow speed outside the meter coupling range,
metering cannot be performed even if the
aperture is changed .
The built·in exposure meter couples to
the range of the aperture and shutter speed
with respect to the film speed. For example,
when using the FD 50mm f/l.4 S.S.C. lens
and ASA 100 film, the exposure meter
couples within the range of from EV 3 (f/l.4
at 114 sec.) to EV 17 (f/16 at 11500 sec.).
Film
Speed
!SA 25 I
!SA 50 112
!SA 100 114
!SA 200 118
!SA 400 1 / 15
!SA 800 1130
!SA 1600 1160
!SA 3200 11125
tntmum
I/stop tm
1 12 114 1/8
1/4 118 1/15
1 /8 1115 1/30
1/15 1130 1/60
1 / 30 1160 111 25
1 / 60 1/125 1/250
1/1 25 / 2 50 / 500
11250 11500
III,
t/ 22 t/ 22 tm
Shutter Speed
1/15 1/30 1/ 60 1/125 11250 1/500 IIIIXXJ
1130 1 / 60 11125 11250 11500 II IIXXJ
1160 1/1 25 1/250 / 500 II IIXXJ

111 25 1250 11500 II IXXJ
11250 11500 II IIXXJ
… …
11500 / IIXXJ

IIIIXXJ
… … … . ..
1/22 t / 22 t/ 22 1/ 16 t/ II 1/8 t/ 5.6
35 Holding the Camera
The electromagnetic shutter release
button has a short, soft touch. The shutter
can be released by lightly depressing the
.shutter button to help prevent camera shake.
But, unsteady holding of the camera will
cause camera shake in spite of the electro·
magnetic shutter release system.
Therefore, be sure to hold the camera
firmly. Rest the camera on your left palm and
grasp the lower part of the lens focusing ring
between your thumb and forefinger or middle
finger. Hold the right end of the camera
firmly, with your right thumb behind the tip
of the film advance lever and your right fore­ finger on the shutter button, while the other
fingers hold the camera`s finger grip.
To reduce camera shake, press your left
elbow strongly against your body and look
into the viewfinder steadying the camera
against the forehead . The right arm should be
relaxed while holding the camera .
When you use comparatively slow shutter
speeds or when you use telephoto lenses, it is
advisable to lean against a wall, a tree trunk or
some fixed object for a steadier grip. The
above describes the fundamentals of how to
hold the camera. You may find yourself the
most appropriate grip for you and get ac·
customed to it through constant practice.
37 38
Releasing the Shutter
When you press the shutter button, try to
squeeze the shutter button gently with .your
finger. Avoid hitting or pressing the shutter
button suddenly particularly when using slow
shutter speeds, otherwise blur may result.
At the moment of shooting, you should
exhale slowly while the shutter button is
being pressed.
Rewinding the Film
When the film advance lever cannot travel
all the way to the end of it s stroke, the frame
counter tells you that you have reached the
end of the film . You have to rewind the film
in its protective cartridge, before you can
remove it from the camera. Since it is not
protected, any exposure to I ight will “fog”
the film and cause a drastic color shift and
loss of image.
To rewind the film, press in the small
rewind button on the bottom of the camera, unfold the rewind crank and turn it in the
direction of the arrow on the rewind crank.
When the frame counter has reached the “S”
mark, you should stop rewinding. Then pull
up the rewind knob to open the camera back
and lift the cartridge out.
If you stop rewinding the moment the
frame counter has reached the “S” mark, the·
film will not be completely rewound into the
cartridge and the film leader will still be
outside the cartridge.
39 40 Concerning the Exposure (Shutter
Speed and Aperture Coupling)
In order to obtain the correct exposure, it
is necessary to correctly match the shutter
sp~ed with the aperture. The shutter speed
and the aperture are the main factors in
controlling the amount of light which is
allowed to strike the film, and when they
change, the quality of the image upon the film
also changes.
Effects of Changing the Shutter Speed
The explanations below are pertinent to
photography with fast moving subjects or
when it is intended to produce impressionistic
pictures of movement. Depending on the
selection of the shutter speed, you can freely
control the expression of movement.
If, as in example A, the photo is taken at
a shutter speed of 1/1000 sec., the movement
will be frozen. If, as in example `B, with the
same subject, the photo is taken at a shutter
speed of 1/60 sec. with a panning technique,
the movement is well expressed.
Panning is really quite a simple technique.
Hold the camera firmly and continue twisting
the upper part of your body while following
43 44
the moving main subject in the viewfinder.
You then release the shutter while still twist­
ing. When you use this technique, the main
subject should be sharp even at slow shutter
speeds and the image of the background is
blurred according to the speed of the panning
movement. This hightens the feeling of
motion in the picture.
Effects of Changing the Aperture
The lens aperture does not only control
exposure but it also has an effect on the
photograph as follows :
In example C, the aperture was set at
f/5 .6 with the shutter speed dial adjusted
before shooting. In example 0, a f/16 setting
was used to clearly demonstrate the diffe­
rence. In C, the miniature cars in the back and
front are blurred and only the miniature cars
in the central area are in focus. In 0, most of
the miniature cars are sharp and clear. Thus,
the lens aperture has a marked effect on how
much of the picture is reproduced sharply. Depth-of -Field
When a certain subject is brought into
focus, there is only a limited range in the
foreground and background of the subject
which can be kept clearly in focus. This zone
of sharpness is the depth-of·field.
There are two methods of confirming the
extent of the depth of the field : by stopping
down the lens diaphragm or by reading the
depth-of-field scale on the lens.
Confirming the Depth-of-Field by
Stopping-Down the Lens Diaphragm
Press the stopped-down lever until it
locks. Once locked, the depth-of-field can be
checked by looking into the viewfinder. Thus,
the extent of the depth·of-field can be seen as
the zone of sharpness in the subject field
observed on the screen. When the stopped·
down lever`s release button is pressed, full
aperture metering will be restored.
45 46
· .”.,;; , ,” ;. `” …
51 7 10 15 30
!.§i 2 3 5 10
I
I II I I I . I I •
16 11 It 4 4 1111 16
.8i 2:8 4 5.6 8 ·1116 ···–`=-·-A~ · .
j
Generally, the depth-of-field will become
deeper as the aperture becomes smaller, and
shallower as the aperture becomes larger. A
shorter focal length as well as a greater
camera-to-subject distance will also deepen
the depth-of-field.
Comparing a 2Bmm lens with a standard
50mm lens set at the same flstop, the 2Bmm
lens`s depth-of-field will be greater. And when
the photographic distance changes, the depth­
of-field changes, too. For example, if the same
subject is photographed from three and then
from seven meters away, the sharp foreground
and background of the subject will be deeper
at the greater distance.
Depth-of-Field Scale on the Lens
A depth-of-field scale is engraved on the
lens barrel, shown as a series of flnumbers on
each side of the distance index mark opposite
the distance scale. Focusing and depth-of-field
are so closely interrelated that the depth-of­ field scale is engraved together with the
distance scale.
You can tell the extent of depth-of-field
from the distance scale. For example, if you
use the camera with a standard 50mm lens
that is focused on a subject at medium
distance, say 3m with the aperture set at fiB,
the depth-of-field extends from 2.4m to 4.5m .
This tells you that with the 50mm lens
focused at 3m and the subject between 2.4m
and 4.5m the film image will be reasonably
sharp. Using the Self-Timer
Obvious uses for the self-timer are self­ portraits and the inclusion of the photo­ grapher in a souvenir picture_ The self-timer
can also be used in place of a cable release
to release the shutter gently and smoothly in
close range work like photomicrography or
copying.
Push the electronic self-timer lever
forward, then press the shutter button, and
the shutter will be released 10 seconds later.
While the self-timer is in operation, the self­
timer lamp flashes on and off. After you
finish taking a picture, the self-timer lever
should be reset to its original position. Other­
wise, it will function again the next time you
press the shutter button.
47 48
Cancelling the Self-Timer Operation
If you should want to cancel the self·
timer operation after having pressed the
shutter button, set the main switch to OFF on
the top side of the camera. Then, the self·
timer lamp stops blinking and the self-timer
operation will be cancelled. If the main switch
is not set to OF F and the self-timer lever
is returned to its original position, the shutter
will be released .
Adapter A for Tripod
When using a great diameter lens,
depending on the tripod being used, it may be
difficult to hold the adjustment in the case of
accidental bumping of the lens. In such cases,
the rubber Adapter A for Tripod may be
placed between the tripod head and the
camera. Flash Photography with the AT-1
The Canon AT-1 can be used with two
different type of flash units; a directly
coupled contact type and a synchronization
cord type. Use the Canon Speedlite 155A of a
directly coupled contact type for exceptional
flash photography. (See page 61 concerning
the 155A.)
When using an electronic flash other than
the Speedlite 155A or a flash bulb, you can
select the appropriate shutter speed in
reference to the table of “Flash Synchroni·
zation Range” indicated below.
Flash Synchronization Range
~hron ized
Shutte r Speed
T y pe Ytooo X oo ~50 ~25 Yso
l lao
” “,
FP Class f:::,
… .0
.!”`5
M and MF lI.CII
f:::,
Class
Electronic
0 0 Flash
~5 is Y 4 jl2
I 2
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
(6 m ark indicates possible unevenness in t h e p icture depending on the flash bulb. )
B
0
0
0
49 50
Long Exposures and “B” (Bulb) Setting
When you need shutter speeds slower
than two seconds such as for shooting night
scenes or fireworks, set the shutter speed dial
at “8”. Then, the shutter will remain open as
long as the shutter button is pressed. In long
exposures, it becomes essential to mount the
camera on a tripod and use a cable release
preferably with a lock to prevent camera
shake and attain best results.
A cable release with a locking device can
keep the shutter open even though the
operator leaves the cable release unattended .
Unlock the cable release to close the shutter.
Photography using the “8” setting will
accelerate battery consumption since it
requires continuous battery power. When
necessary, the battery should be replaced with
a new one having a full charge. Film Plane Indicator
This mark is engraved on the top of the
camera beside the film rewind crank, just to
the left of the pentaprism, to indicate the
exact position of the film plane. The distance
scale on the lens shows subject distances
measured from the film plane indicator. This
mark is not used in general photography, but
in close-ups and macrophotography it can be
used to obtain the exact film-to-subject
distance.
51 52
Stopped-Down Metering
When the AT-l is used with Canon FD
lenses, photography can be performed with
match needle type full aperture metering.
Even when the lens automatic aperture lever
is locked in the manual position, FD lenses
should not be used on the AT-l with stopped·
down metering. This will cause improper
meter readings.
In spite of this, in those cases of the
Canon F L lenses and most accessories such as
bellows, extension tubes, or a microscope
adapter, you must take a stopped-down meter
reading. Stopped-down metering is performed
by pushing the stopped-down lever until it
locks with the main switch at ON, and
adjusting the shutter dial and/or the aperture
ring until the meter needle is aligned with the
aperture needle . Press the shutter button
and the photograph will be prefectiy exposed.
If the lens should be mounted on the
camera with the stopped-down lever locked,
correct exposure will not be obtained. In this
case, a red warning mark by the stopped-down
coupling lever inside the camera body is
visible. After removing the lens, on the lower
part of the camera body, just below the mirror, this stopped-down coupling lever (1)
becomes visible, as does the red mark in the
case described above.
The Extension Tube FD 25 and FD 50
eSRecially designed each for the FD 50mm
and FD 100mm macro lenses should be used
with full aperture metering. In this case, depth
of the field can be assured in the viewfinder
by pressing in the stopped-down lever.
Manual Aperture Control
When accessories requIring manual
aperture control are used between the camera
body and a lens, lock the lens automatic
aperture lever in the manual position before
mounting the lens.
Lock for Manual Aperture Control (1)
For manual aperture control , push the
automatic aperture lever counterclockwise
until it stops and locks. When accessories such
as extension tubes are attached to a lens that
nas been set for manual control, the dia­
phragm blades of the lens open or close as the
aperture ring is turned. To revert from manual
control, reset the automatic aperture lever to
its original position.
53 (2)
54
Lock for Manual Aperture Control (2)
There are some FD lenses with the manual
lock lever requiring a different procedure for
manual control setting. With these particular
lenses, the automatic aperture lever must be
turned fully counterclockwise while the
manual lock lever is brought to the “L”
position. Once this has been done, when the
lens is mounted on the camera, the diaphragm
blades will open or close by turning the
aperture ring. To revert from manual aperture
control, reset the manual lock lever at the
position of the white dot.
Lock for Manual Aperture Control When
Using the Macrophoto Coupler (3)
In close-up photography of high mag·
nification with a lens reversed on the Macro­
photo Coupler, the automatic diaphragm
mechanism is not coupled. you must,
therefore, remember to close down the
diaphragm manually after having locked the
automatic aperture lever in the manual
position as explained above in (1) and (2).
Then, fix the Macrophoto Hood on the lens
mount by turning the bayonet ring. Changing the Lens
FD lenses incorporate a safety mechanism
to prevent the Breech-Lock ring and the dia­
phragm blades from moving when the lens is
not mounted on the camera. To bypass this
safety mechanism, press the lock pin in the
top recess of the breech-Lock mount while
turning the Breech-Lock ring. Once this safety
mechanism has thus been cancelled, you can
see the diaphragm blades move when activated
by the automatic aperture lever.
Since FD lenses have signal pins and
levers which couple with the camera body,
special care must be taken not to damage
them. One basic precaution is to always put
the lens down facing down whenever you must
change lenses.
Take notice that the following lenses
cannot be used on the AT-l due to inter­
ference with the body signal pins. Using these
lenses will cause improper meter readings
and may cause damage to the ca~era.
FL
FL
FL
R
19mm
50mm
58mm
35mm
f/3.5
f/l.8
f/l .2
f/2 .5
R
R
R
R
50mm
58~m
100mm
100mm
f/l.8
f/1.2
f/2
f/3.5
55 56
Automatic
EE Switch Pin Aperture Lever
Reserved Pin Full Aperture
Signal Pin
Lens Signal Coupling
Aperture Signal Lever
This lever transmits the actual f/stop to
the exposure meter. It is coupled to the
aperture ring .
Full Aperture Signal Pin
This pin transmits a signal indicating the
maximum aperture of the lens.
Automatic Aperture Lever
This lever closes down the aperture.
It couples with the stopped-down coupling
lever.
EE Switch Pin
This pin protrudes when the aperture ring
is set at the “A” mark . In this position , it
transmits a signal for AE photography. When
the aperture ring is set at the “A” mark, the
lens can be attached only to the Canon EF,
AE-1, and the F-1 equipped with the Servo
EE Finder. If the lens is attached to t:le
AT-1, it cannot be set at the “A” mark.
Reserved Pin
This pin is designed for use with acces­ sories that may be developed in the future. Distance Scale
The distance scale is for distances
measured from the film plane. This scale is
not generally used except for confirming the
depth·of·field , performing guide number
calculations in flash photography, or photo·
graphing with infrared film .
Read one-digit distances in the middle of
the number marked on the scale. Two-digit
distances should be read at the point in the
middle of the two digits.
Depth-of-Field Scale
You can determine the depth-of-field by
checking the depth-of-field scale and the
distance scale on the lens barrel. Both are
closely interrelated.
Infrared Index Mark
The red dot infrared index mark engraved
on the lens barrel is a focusing correction
index mark for infrared film. Because infrared
light rays have longer wavelengths, they focus
on a plane slightly behind that of ordinary
visible light rays. Therefore, it is necessary to
slightlly modify the normal method of focus­
ing the lens. After focusing the same as usual,
note the tiny red dot engraved on the lens
barrel just to the right of the distance index
and turn the focusing ring slightly to align the
focused distance with this red dot. For
57 58
instance normally, when the focus is adjusted
at 5m on the distance scale, you turn the
focusing ring slightly so that the 5 on the
distance scale matches the red dot infrared
index mark.
When photographing with infrared black
and white film, visible light rays must be kept
out by means of a deep red filter (R1) over
the lens. The position of the infrared index
mark is fixed for infrared film most sensitive
to the 80Om~ wavelength and use of a red
filter. For example, the Kodak Film IR 135
and the Wratten Filter 87.
When performing infrared color photo·
graphy, follow the directions of the specific
instructions of the film manufacturer. Canon Speedlite 155A
When the Speedlite 155A is used with the
AT-1, it is not necessary to set the shutter
speed on the camera as is the case with
or~inary electronic flash units. At any shutter
speed except “8”, the shutter speed is
automatically adjusted to the X synchroni­
zation speed of 1/60 sec. at the time the
155A is charged. To perform automatic flash
photography , set the prescribed flstops on the
lens manually.
This flash employs a unique light sensing
system, so excessive reflection from the
central area is reduced giving better overall ex­ posure.
61 62
Canon Power Winder A
The Canon Power Winder A is an auto­
matic film winder_ It can be attached to
any Canon AT-` directly, without any other
accessory or attachment. When you attach the
Power Winder A to the Canon AT-` and press
the shutter button, the film will be im­
mediately wound after being exposed.
Furthermore, with the Power Winder A you
can catch subjects` movements and changi ng
expressions because you are able to take
continuous or single frame photography at
your pleasure. Continuous photography at up
to two frames per second is performed just
by keeping the camera`s shutter button
depressed. Shutter speeds from , /60 to
, /` 000 seconds couple in continuous photo­
graphy. While in single frame photography,
any shutter speed can be used. This is simply
done by I ifting your finger off the camera`s
shutter button .
The Canon AT-` and Power Winder A
form a compact, lightweight package that is as
portable as a manual advance camera, and
much more convenient. Data Back A
This is an interchangeable back cover
with a built-in data imprinting mechanism. It
can imprint the day, month and year on the
IOl(ller right hand corner of the photograph at
the moment of the shutter`s release, as well as
other data to identify or classify the pictures
you take. It imprints letters of the alphabet
and Roman numerals for greater versati I ity
and convenience.
Canon Bellows F L
This is an adjustable bellows for high·
magnification photography. Magnification is
adjustable within the range of about 0.7 to 3
times the size of the subject when the bellows
is used in combination with a standard lens.
The built·in semi·automatic aperture
mechanism automatically closes the dia·
phragm at the time of shooting and makes the
Bellows FL almost as easy to use as a fully
automatic lens. Focusing is performed with a
bright field of view. This has a built·in strut to
prevent blur. The Slide Duplicator FL for
duplicating slides can be attached to the end
of the Bellows. The use of a macro lens
especially corrected for close·ups is recom­ mended for photography with the bellows.
63 64
Accessories
1. Angle Finders A2 and B
2. Eyecup 4S
3. Magnifier S
4. Camera Holder F3
5. Macrophoto Coupler FL55, 58
6. Lens Hood BS-55
7. Microphoto Hood
8. Photomicro Unit F
9. Slide Duplicator
10. Handy Stand F
11 . Gadget Bag 4-type
12. Gadget Bag- G-1
13. Canon Release 30
14. Canon Release 50
15. 55mm filters
58mm filters
16. 58mm Close-up Lenses (240, 450, 1800)
17. 55mm Close-up Lenses (240, 450)
18. Copy Stand 4
19. Bellows M
20. Bellows F L
21 . Holder for Gelatin Filter with Filter
Holder Adapter and Hoods
3
o
5
7
6
12 22. Extension Tube M Set
0
15
23. Dioptric Adjustment Lens S for Eyesight
Compensation (10 kinds)
24. Speedlite 155A
25. Power Winder A
19
26. Data Back A
C
22 23
24
26
65 66 Care and Storage of the Camera
No matter how exceptional the camera
may be, it will not give you all it can unless it
is taken care of properly. Please make sure to
keep the camera clean all the time. Acquire a
blower brush, cleaning liquid, cleaning paper,
silicone cloth, etc.
Care of the Camera
Dust on the lens or the viewfind`er should
first be blown off with a blower brush. Use
lens tissue or a clean, soft cloth to remove
fingerprints or smudges with a gentle circular
motion, if necessary after breathing on the
surface. It is best to wipe the surface with lens
tissue impregnated with one or two drops of
cleaning liquid. After the camera has been
used on a beach or near the sea, clean it well
because salt can affect its mechanisms. A
blower brush should also be used to clean the
mirror box inside the camera body. If it
should require wiping, by all means, please
take the camera to a Canon authorized
d istri butor.
The film compartment has to be cleaned
with a blower because it easily collects film
dust. If the dust contains sand, the film is
easily scratched. When cleaning the rail
surface or the pressure plate, please use
cleaning paper and ~eaning liquid. Be careful
not to touch the shutter curtain when doing
so.
Maintenance
Keep the camera in a place with low
humidity and no dust. After removing the
camera from the case, take the battery out.
When you are going to store the camera for a
long time without using it, the shutter release
button must be activated now and then, to
prevent mold and mechanical trouble .
Please avoid storing the camera in places
such as mentioned below.
1. Inside the trunk or rear window of a car
in the direct sun because the temperature can
rise to an extremely high degree and this may
give rise to trouble in the camera.
2. Places such as laboratories where
chemicals are around may cause rust or cor­
rosion.
To safeguard the durability of the
camera, please take it to the closest Canon
authorized distributor once every three years
at least. If the came” ra is not in use for a long
time, please use it only after closely checking
each and every part of it.
67 68
. To guard against the inconvenience of loss, theft or other unforeseen problems, fill in
the form below to keep as a record of your camera for use in such circumstances.
Name of the Camera: Canon AT·` Purchase Date:
Body Number:
Lens Types and Numbers:
Name:
Address:
Telephone Number :
Note: Self -Timer Lamp ——-i– –
Memo Haddl!r——-:.-“=:
Winder Terminal<--======= ---------Shutter Speed Index ~------- Frame Counter Film Rewind Button Tripod Socket 70 Canon CANON INC. 11 ·28, Mlta 3 ·cheme, Minato -ku, Tokvo 108, Japan USA ----Tt~e?a~aU ri~~~·l!~eCsu~~~,DL~~: :~:nd. N . Y . 11040, U .S.A. CANON U.S.A., INC. MANHATTAN OFFICE 600 Third Avenue, New York, N . Y . 10016, U .S.A . CANON U.S.A., INC. ATLANTA` SERVICE STATION 160 Peachtree Street, N.W., Atlanta, Georgia 30303, U .S.A. CANON U.S.A., INC. CHICAGO OFFICE 140 Industrial Drive, Elmhurst, Illinois 60126, U .S.A . CANON U.S.A., INC. LOS ANGELES OFFICE 123 Paularino Avenue East, Costa Mesa , California 92626, U .S .A . CANON U.S.A., INC. LOS ANGELES SERVICE STATION 3407 West 6th Street, Los Angeles , California 90020, U .S.A. CANON U.S.A., INC. SAN FRANCISCO SERVICE STATION 776 Market Street, San Francisco, California 94 102, U .S .A . CANON U.S.A., INC. HAWAII OFFICE Bldg. 8 ·2 , 1050 Ala Moana Blvd., Honolulu, Hawaii 96814 , U .S.A. CANADA---- CANON OPTICS & BUSINESS MACHINES CANADA, LTD. HEAD OFFICE 3245 American O rivII, Mississauga, Ontario, L4V lN4, Canada CANON OPTICS & BUSINESS MACHINES CANADA, LTD. MONTREAL OFFICE 3070 Brabant·Marineau Street, St. Laurent, Quebec , H4S 1 K7, Canada CANON OPTICS & BUSINESS MACHINES CANADA, LTD. VANCOUVER OFFICE EUROPE . AFRICA 5900 A, No. 2 Road, Richmond . B.C. V7C 4R9, Canada • MIDDLE EAST - - CANON AMSTERDAM N.V. CENTRAL 10 Gebouw 70, Schipho l OOst, Holland SOUTH AMERICA--CANON LATIN AMERICA,INC. SALES DEPARTMENT P.O . BOM 7022, Panama 5, Rep. of PanatTJa CANON LATIN AMERICA, INC. REPAIR SERVICE CENTER P.O . BOM 20 19, Colon F ree Zone, Rep . of Panama SOUTH[AST A SIA--CANON INC . HONG KONG BRANCH 5th Floor 2·6 , Fui Viu Kok Street, Tsuen Wan , New Terr itories , Hong Kong PUB. IE lO340 0777021 PRINTED IN JAPAN

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