Film cameras
Petri FT II User manual
User manual for Petri FT II. 37 pages. Read the original PDF, download or print a copy without registration.
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- Brand
- Petri
- Model / document
- Petri FT II
- Document type
- User manual
- Language
- Check the original document
- Pages
- 37
- File size
- 6.5 MB
- Category
- Film cameras
- Document date
- Not specified in catalog
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Page 6 · Read text
@ Flash Socket @ Distance Scale
A\!q Back Cover Lock @ Deoth of Field Indicator
@ Diaphragm Scale
@ Diaphragm pin
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www.butkus.us arnEY Viewfinder @ Film Rewind Button ,6;\v1/ Film Cassette Chamber @ Triood Socket @ Sprocket v6i\ Auto & Manual Diaphragm Switch @ Take-up SpoolView original page 7
Page 9 · Read text
3 ADVANCE THE FILM 5 EXPOSURE SETTING
Swing the f ilm transport lever a nd release Sight through the viewfrnder. Depressing
the shutter twice. Then repeat the operatio n the diaphragm lever turn the diaphragm
once more and the shutter is cocked for ring till the exposure meter need le is
the first exoosure. centered in the circle.
SET THE SHUTTER SPEED FOCUS AND SHOOT
Turn the shutter speed dial and line up Turn the focusing ring till the image IS
the appropriate speed with the white line seen sharp in the center grid.
on the base of the accessorv shoe. Soueeze the shutter release button IO
avoid camera shakeView original page 9Page 10 · Read text
BATTERY FOR THE CdS EXPOSURE METER
The built-in CdS exposure meter is powered with a 1.3 volt mercury
battery of the Mallory PX- 625 or equivalent type. The battery
compartment is located on the left-hand front side of the top
cover. The exposure meter is switched on by a stroke of the
film advance lever. When the exposure meter needle does not
respond to a change of light conditions, the battery has become
exhausted and must be replaced.
U nscrew the battery compartment cover with your f inger ti ps
and insert a new battery with the plus (+) upward, facing the
battery compartment cover, into the battery compartment.
www.butkus.usView original page 10Page 11 · Read text
FILM TRANSPORT LEVER
When the film transport lever is advanced, the
f ollowing things happen simultaneously:
1 . The battery switch is turned on and the
exposure meter is activated'
2.The film frame is transported to the next
unexposed frame.
3. The film counter is advanced.
4. The shutter is cocked.
After the shutter is released, the battery circuit is
shut off and unnecessary battery drain is avoided'
EXPOSURE COUNTER
The counter is located on top of the camera body'
It shows the number of film frames exposed, and
automatically resets to "S " (f or "Start ") position
when the back cover is opened' Frames of the 12th,
2oth and 36th are marked in red to signal end of
the roll, depending on the length of the film used'View original page 11Page 12 · Read text
FILM SPEED (ASA OR DINISETTING
After the film has been loaded, be sure to set the ASA or DIN
film speed index specified for the film in use on the film speed
scale. This adjusts the exposure meter for the film being used and
an essential step in getting properly exposed pictures.
To set the film speed, turn the film speed dial and align the reading
equivalent to speed of the film in use with the black line on the
right-hand side of the dial. Do not set in between click-stops.
The black numbers represent ASA values and range from ASA 25
to 1600, and the red numbers represent DIN values ranging from
DIN 15 to 33. Read the instructions supplied with the film and
set the correct film speed index number. lf the number of the film
speed corresponding to that of your film is not available on the Wfilm speed scale, use the closest number and never set between
two settings. For convenience, the positions for intermediate film
speeds are shown only by dots. See the illustration.
ASA 25 o a 50 a a r00 o a 200 o a 400 a o 800 a a 1600
NUMBFRS SHOWN : : BY DOTS 32 40 64 80 125 t60 250 320 500 650 1000 1250
3sDIN 15 a?rBoo 2t Q o u O Q 2t ? ? ao ? o
, , : : :NUMBERSSHOWT, g2: BY DOTS t6 17 t9 20 22 2g 25 26 28 29 31
t0 www.butkus.usView original page 12Page 13 · Read text
SHUTTER SPEED DIAL Your camera shutter has a range of speeds covering sufficiently all the ordinary picture situations. lt has the settings of:1/1OOO, 1/5OO' 1/25O, 1/125,1/6O,1/3O,1/15,1/8,1/4,1/2 and 1 second and Bulb. When the Bulb setting is used, the shutter stays open as long as the shutter button is being depressed (for time exposure). The settings are represented on the shutter speed dial located right-hand on top of the camera body. For convenience, only the lower half of the numbers (250 for 1/25O, etc.) and B (for Bulb) are.etched on the black wheel. The shutter speed is set by lining up the www.butkus.us appropriate number or B with the white line on the base of the accessory shoe. Do not set the shutter speed between two click-stops. The shutter speed can be selected either before or after the shutter has been cocked. For indoor photography. it is recommended to set the shutter at 1/30 or 1/60; for outdoor photography, at 1/125 or 1/25O; and for action pho- tography such as in sports or snap shots it is important to use faster speeds of 1/5OO or 1/1OOO to avoid blurring. The number "15"for 1/15 second is larger than others and painted in fluorescent. When using the shutter speeds slower than 1/15 second, it is recommended to use a tripod and a cable release equipment so as to avoid camera shake.View original page 13
Page 14 · Read text
DIAPHRAGM SCALE The diaphragm scale is located on upper side of the lens barrel. The aperture opening has eight settings, ranging from f /1.4 (seven settings for f /1.8 lens, ranging from I/1.8), the maximum opening, to 1/16, the minimum opening. Settings between f/stops are also possible. AUTOM ATIC/MANUAL OPERATION There are "A"(short for Automatic) mark in green and "M" (short for Manual) mark in red on the underside of the lens barrel. Move the auto & manual diaphragm switch @ to the left, and you will see the diaphragm is set at "A"position. This is the normal position for most circumstances. With the "A" t2 www.butkus.usView original page 14
Page 15 · Read text
APERTURE SETTING
The operation of the automatic diaphragm mechanism position, the diaphragm stops down to the
pre-selected aperture just before the shutter
is released and opens again after each exposure
for easy and accurate focusing. See the diagram.
When manual diaphragm is desired, move the
(1)When you are focusing, the diaphragm stays open auto & manual diaphragm switch to the right.
and the mirror remains in oosition.
The advantage of the manual operation is that
you can pre-view the depth of field and see in
the viewfinder the lens zone of sharpness with
any aperture. The manual operation also can be
obtained simply by pressing the diaphragm lever@
(2)Just before the shutter opens. the lens stops down
to the preselected aperture. The mirror moves out
of the
(3) After the exposure, the lens reopens to full aperture
position. wav.vland the mirror returns to its original The batterv circuit is shut off.
L r3View original page 15Page 16 · Read text
VIEW FINDER AND FOCUSING
UPRIGHT, UNREVERSED IMAGE
As a 35mm single lens reflex camera, the Petri FT II uses a
mirror as part of its optical system to transfer the image A\^,
entering the lens to the viewfinder. In the process, the image \]]Vil-
which is originally reversed and inverted when it enters the
lens is reversed and turned right side up so you see the ll/11> (rrr/r
picture in the viewf inder exactly as your naked eye would. =(/ ++Fil+vl \\\D Avu\)
MICROMATIC PRISM GRID
Petri FT II has the original Petri Micromatic Focusing system
for fast and accurate focusing.The precision focusing elements
in the viewfinder consist of a group of more than 800 micro-
prisms as shown in the center of the picture. As you look
through the micro-prism area @ in the viewfinder, you can
see the subject clearly, ONLY when it is correctly focused.
Rotating the focusing ring you will notice the appearance of
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l4View original page 16Page 17 · Read text
something like a mesh of a net in the center of the vieMinder.
This reticulation is caused by the f lickering of reflected light
entering the,camera lens. When the subject is correctly focused
the flickering grid fades away from the micro-prism area.'ln
the second inner circle @ is the plain glass area where the
subject is always seen sharp and clear, even when the lens
is out of focus.When the lens is correctly focused the image
in the micro-prism area will be as sharp and,clear as that
seen in the surrounding circle @. IN FOCUS
OUT OF FOCUS
l5View original page 17Page 18 · Read text
EXPOSURE CONTROL
THROUGH-THE-LENS SYSTEM
Your Petri FT II camera has a built-in, through-the-lens
Eyepiece Lens exposure control system utilizing the most sensitive
measuring devices available in ordinary photography.
Two cadmium sulfide (CdS) cells, located on each side of
the pentaprism base, measure the average brightness
of the image entering the lens and reflected to the
CdS Cell viewfinder. This through-the-lens measurement is trans-
lated into an accurate exposure indication registered by
the needle in the viewfinder.The readings are accurate
not only with standard lenses, but also with interchange
Condenser Lens able lenses including long ones, with filters, close-up
equipment and accessories for photomicrography. Since
they actually measure the available light of the image
that has entered the camera, calculations for exposure
adjustments are unnecessary.
The system operates automatically with the lens aperture,
shutter speed and film speed settings.
www.butkus.us lView original page 18Page 19 · Read text
EXPOSURE CONTROL
COUPLED CdS METER
The CdS meter of your Petri FT II camera is coupled to
the lens aperture, shutter speed and film speed settings.
A change in the setting of any one or more will,
therefore, alter the meter reading. lt is preferable, of
course,to change either the aperture or shutter speed
if an adjustment is required. The film speed setting
should always be the one for the film you are using. OVER
By advancing the film transport lever, the battery
switch is turned on and the exposure meter is activated.
Keep your finger on the diaphragm lever @. (When the
diaphragm is being set at the manual operation, there
is no need to press the lever. Refer to AUTO/MANUAL
OPERATION at page@.) And swing the diaphragm scale
@. When the exposure meter needle is centered, the PROPER
setting is correct.
lf the lens aperture is too large or the shutter speed
too slow for the available light, the needle in the
viewfinder wi ll be above the circle and indicate that
the picture if taken, will be overexposed.
lf the lens aperture is too small or the shutter speed
too fast for the available light, the needle will be below
the circle to indicate that the picture will be underexposed. UN DER
17View original page 19Page 20 · Read text
TO ADJUST THE EXPOSURE of the subject and your main subject isCONDITION comparatively darker than the back-ground. ,{When the main subject of the whole picture it is recommended to adjust the expQsurearea you f rame in the viewf inder is extremely procedure is same as required The condition. '{dark or bright, it is recommended to adjust (Refer is dark. subject important when thethe exposuie condition so that the important tO TO ADJUST THE EXPOSURE CONDITION)
subject is correctly exposed. First, set the exposure in the normal way.lf the important su bject is comparatively Rotate the diaphragm ring to the rightdark, set the f /number at a half or one stop and set the f/number at a half or onecloser to the f ull aperture than the f /number stop closer to the full aperture than theindicaied when the exposure meter needle f/number indicated when the exposureis ce ntered. meter needle is centered.lf the subject is brighter, set the f /number
at a half or one stop closer to the minimum
aperture than the f/number normally obtained.
For example, when you take a portrait with
a back-ground of snow scene or o'n the
beach, you can get a properly .exposed
picture by using a half or one stop wider
aperture opening than normal.
SHOOTING AGAINST THE LIGHT
When the light is available from the back NORMAL LIGHTING BACK LIGHTING
r8 www.butkus.usView original page 20Page 21 · Read text
EXPOSURE METER COUPLED RANGE
EXPOSURE METER COUPLED RANGE
f aster, the Petri FT II has a fullv coupled CdS exposure meter f rom 1 /1 2 5 second to 1 1250, one stopt which measures optimum exposure conditions diapnragm has to be alteredf Through-The-Lens, ranging from EV 3 to EV 18 one stop larger aperture.Thus, f yourom canf /5.6usetosevenf 14,
1 / 1 000 with ASA 1O0 (DlN 2 1) f ilm. diff erent shutter speeds ranging f rom
second to 1 /1 5 second (see the chart) when the
HOW TO READ THE CHART EV is at 12.
The word "EV"stands f or"Exposure Value j' which \Mrat shutter speed you should use depends on the
represents the brightness on the subject you condition of subject. (Refer to SHUTTER SPEED
frame in the viewfinder. The EV is represented DlALat pagel 1.)The diaphragm opening should be
by numbers, and exposure meter of the Petri also decided according to the purpose of your
25.) FT II can measure the brightness on the subject photograqhy.(Refer to DEPTH OF FIELD at page
ranging from EV 3 to EV 18 when you use the Exposure Meter Coupled Range Chart EV3-EV18 ASA
(DlN 21).I film speeded at ASA 1O0
For example, if the exposure meter needle is. 1.4 4 8 15 30 60 125 250 500 1000
U. centered when you select aperture opening of 2(1.8) 2 4 8 15 30 60 125 250 500
2.8 12 4 8 15 30 60 125 250 f /5.6 with shutter speed of 1 1.1 25 second (the
film speed dial is set at ASA 1OO), the bright- 4 1248153060r25
5.6 ness on the subject is supposed EV 12. lf the
brightness is at EV 12,you can use every one of 6
l1 seven different shutter speeds and get properly
exposed pictures. lf you change shutter speed 16View original page 21Page 22 · Read text
FILM LOADING
PETRI FT II accepts the standard 35mm car- cartridge. Load the film in a shade, using your
tridges containing 12, 20 or 36-exposure lengths body with your back to the sun as protection if
of film. Avoid direct sunlight falling on the film you have no other method.
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1. TO OPEN THE CAMERA BACK 2. TO PULL OUT THE KNOB 3. FILM LOADING
Pull down the lever with your Pull out the film rewind knob on Slip the film end into any slit on
thumbnail and open the camera top of the camera. This is to the take-up spool and slide it
back. At the same time, the ex- allow the film cassette to be put down toward the bottom of the
posure counter automatically re- into the cassette chamber. camera body, and check that
turns to "S" (wihch means the film perforation is properly
"Start") position. engaged with the tooth of
camera sprocket.
20 www.butkus.usView original page 22Page 23 · Read text
I
4. TO ADVANCE THE FILM 5. TO CLOSE THE CAMERA 6. TO RELEASE THE SHUTTER
Advance the film advance lever BACK AND ADVANCE THE FILM
a little and see that the film is The camera back will be locked Repeat this action twice, and you
fastened round the take-up spool, with a snap by a slight pressure. are ready to take yourfirst Pic-
before closing the camera back. tu re.
NOTE: In case the film rewind knob does not turn counterclockwise by advancing the film advance
lever. it shows that the film is not properly transported. Open the camera back and check
the take-uP sPool.
2lView original page 23Page 24 · Read text
FILM UNLOADING
After the entire length of film in the removed into the film cartridge so it can
cartridge has been exposed, it must be be removed from the camera.
1. TO REWIND THE FILM 2. TO REMOVE THE CARTRIDGE
Depress the film rewind button a little tension on the crank while Pull out the film rewind knob and
located on bottom of the camera the film is being rewound. When remove the film cartridge.
body. Raise the film rewind crank the tension stops, you know that Avoid direct sunlight when re-
and turn it in the direction indi- the rewinding is complete. moving the film cartridge from
cated bv the arrow. You will feel the camera. Also, the camera lens
should face downward while the
cartridge is being removed so as
to prevent it from dropping out.
www.butkus.us22View original page 24Page 25 · Read text
HOW TO HOLD YOUR PETRI FT II CAMERA
The format of your picture is determined by the position in which
you hold the camera. Holding the widest part in a horizontal posi-
tion will result in a horizontal format. Holding the widest part in a
vertical position will result in a vertical format' Blurring in a picture
often is caused by camera shake at the moment of exposure.
Practice holding the camera and releasing the shutter so you can
take pictures without jarring or shaking' it'
Usethefo||owingthreesimp|erulesfortakingapicturetoavoid
camera movement:
1. Before releasing the shutter, take a deep breath and hold
it until after the picture has been taken'
2. While taking the picture. hold the camera firmly with both
hands and press the back against your face and forehead
as firmly as Possible.
3. Squeeze the shutter release button, do not prod or tap it
Practice squeezing until you can release the shutter without
the slightest quiver.
23View original page 25Page 27 · Read text
The depth of DEPTH OF FIELD
field zone A lens that can be focused lets you accentuate the important amagel+- -.1 in a oicture,while it can de-emphasize irrelevant objects in f ront of and
behind the main subiect by throwing them out of focus.This involves
what is known as "Depth of Field". The smaller the aperture is
the more the depth-of-field increases.
HOWTO READ THE DEPTH OF FIELD
The scale is engraved on the lens barrel of your camera and
indicated in black lines spreading out both sides of the index marker
at the center. Simply focus the lens in the normal way. and each
pair of black lines which points to the diaphragm scale indicates
the depth-of-field zone corresponding to the diaphragm you set.
For example, the depth-of-field zone for the standard 5Smm lens
is indicated as follows: When the focusing distance is 8 feet and
the f/11 is selected,one of black lines atfl11 pointsto 6feet,the
nearest Doint still in focus, and the other points to approximately
12 leet on the other side, being the furthest distance in focus.
25View original page 27From the M. Butkus archive. Original publisher and archive notices are retained.
Check the model and edition against your equipment.
PDF verified 2026-10-10.