Film cameras
Petri V6 User manual
User manual for Petri V6. 12 pages in English. Read the original PDF, download or print a copy without registration.
12 pagesEnglish1.6 MB PDF
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Document details
- Brand
- Petri
- Model / document
- Petri V6
- Document type
- User manual
- Language
- English
- Pages
- 12
- File size
- 1.6 MB
- Category
- Film cameras
- Document date
- Not specified in catalog
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Page 2 · Read text
MAJOR SPECIFICATIONS OF PETRI FLEX V6 Type: Single Lens Reflex 35mm camera with fully automatic diaphragm and quick return mirror. Film size: 35 mm film 120 or 36 exposures) Picture size: 24mmX36mm Standard Lens: " PETRI " 55 mm/f 1.8 ( or f 21 color corrected lens. Speeds: B. 1/2, 1/4,1;8, 1/15, 1/30, X, 1/60,1/125 and 1/500 second. Single pivot non-rotating shutter dial Viewfinder: Penta Prism viewfinder with built-in " Micromic-Lens Focusing". Film transport: Rapid, single stroke (180°) lever transport which advances the film and winds the shutter simultaneously. Synchronization: FP, M and X automatic setting Interchangeable Lens: Bayonet type Interchangeable Lenses can be attached to the camera Others: Automatic Resetting Film Number Indicator with crank type film rewind system and built-in self timer INDEX MAJOR SPECIFICATIONS OF PETRI FLEX V6 2 DESCRIPTION OF PARTS , 4 FILM LOADING ..... ... .... .. ... ~ 6 VIEWFINDER AND FOCUSING 8 USING THE FULLY AUTOMATIC & MANUAL DIAPHRAGM OF THE LENS 9 USING THE SELFTIMER 10 FLASH PHOTOGRAPHY 10 HOW TO HOLD YOUR PETRI FLEX V6 CAMERA 11 FILM UNLOADING . . ... . . . ......................... 12 INTERCHANGING THE LENS 13 HOW TO USE THE PETRI CdS EXPOSURE METER 14 INFRA-RED PHOTOGRAPHY ............ 17View original page 2
Page 4 · Read text
(20) Distance Scale
(21) Depth of Field Indicator
(22) Diaphragm Scale
(23) AUTO & MANUAL Diaphragm Switch
(24) Diaphragm Pin
FILM LOADING
Opening the Camera Back
Pull down the lever with your thumbnail to open the Camera Back. At the same time, the
Film Number Indicator automatically returns to zero.
Pulling out the Knob
Pull out the FILM REWIND KNOB on the top of camera. This is to allow the film
cassette to be put into the cassette chamber.
Slip the film end into any slit on the Take-up Spool and slide it down toward the bottom of the camera body and
check that the film perforation is properly engaged with the tooth of camera sprocket.
Advance the Film Advance Lever
Advance the Film Advance Lever a little to see if the film is fastened round the Take-up
Spool, before closing camera back.View original page 4Page 5 · Read text
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Closing the Camera Back
The Camera Back will automatically be closed by light pressure.
Release Shutter Release Button and advance the Film Advance Lever.
Repeat this action twice, and you are ready to take your first picture.
VIEWFINDER AND FOCUSING
The perfect combination of Fresnel Screen and
Condenser Lens used in the viewing system of
every Petri Flex V6 is the result of Petri's
highly advanced technical and engineering
ability. The precision focusing elements in the
viewing system consist of a group of micro-
lenses as shown in the center of the picture. As
you look through the micro-lens area (A) in
the viewfinder, you can see the subject clearly,
ONLY w'hen it is correctly focused.
Rotating the focusing ring you will notice the
appearance of something like a mesh of a net
in the center of the viewfinder. This
reticulation is caused by the flickering of
reflected light entering the camera lens. When
the subject is correctly focused the flickering
grid fades away from the micro-lens area. In
the second inner circle (B) 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-lens area will
be as sharp and clear as that seen in the
surrounding circle (C).
USING THE FULLY AUTOMATIC & MANUAL DIAPHRAGM OF THE LENS
This shows: The mirror moving up, the diaphragm closing to the correct opening, the
film being exposed, the diaphragm opening fully for focusing and the mirror returning.View original page 5Page 6 · Read text
*Look at the AUTO & MANUAL Diaphragm
Ring. Adjust the ring until the AUTO mark is on
top of the lens barrel--the diaphragm is now set
for FULLY AUTOMATIC operation. This is the
normal position for most circumstances. When
you want to release the Automatic Diaphragm,
slide the AUTO & MANUAL Switch in the
direction indicated by the arrow on the ring.
* When the DIAPHRAGM is set on the AUTO position, it will only stop down to the set aperture, when the
shutter has been released. The AUTO position enables rapid accurate focusing as the subject in the viewfinder is
very bright and the DEPTH OF FIELD is extremely small. The MANUAL position has the advantage that you
can pre-view the DEPTH OF FIELD and see in the viewfinder the lens zone of sharpness with any aperture.
USING THE SELF TIMER
Adjust the Self timer Lever in the direction indicated by the
arrow in the illustration (180 degrees) Press the "Self. timer
Release Button" and the frame will be exposed after a delay of
approximately 11 seconds.
* Note that the Self timer can be set at in between position so
as to shorten the ret lease time.
* The Self timer can be set either or after advancing the film.
* All shutter speeds with the exception of the B setting can be used with Self timer.
* The main use of the Self timer is when the photographer wishes to join a group, which he is photographing. It
can also be useful for Microscopic photography or when using a long focus length. In all cases the use of tripod
is recommended.
FLASH PHOTOGRAPHY -
The shutter of the camera is synchronized for use with flash bulbs, which enables you to take photographs even
when the light is extremely poor. With reference to the picture (see next page) connect the synchronizing cable
of the flash gun to the flash socket on the camera. The flash gun can be attached to the PETR FLEX V6 by way
of the camera accessory shoe. When using F class, M class and FP class flash bulbs, or Electronic flash shutter
speeds must be selected according to the table shown below. (Speeds within the colored are available).View original page 6Page 8 · Read text
INTERCHANGING THE LENS
Adjust the Lens Mount Ring in an anti clockwise
direction until the red mark appears on top of the lens
barrel. The Lens can then be removed from the camera.
When inserting the lens, line up the red dot on the camera
body with the red dot on the lens mount ring and when the
lens is in position firmly, turn the LENS MOUNT RING
in a clockwise direction. Before inserting the lens make
sure that the AUTO & MAN UAL control of the lens is
on the " MANUAL" position. A complete range of
interchangeable lenses from 35mm wide angle to 400 mm
Telephoto is available for your new Petri Flex V6 camera.
A special adapter ring is available for using screw thread
interchangeable lenses.
PETRI LENS
The standard lens equipped with PETRI FLEX V6 camera is a high speed PETRI 55 mm four group · six
element using Lanthanum flint high refractive index glass. This PETRI LENS has a high resolving power even
at full aperture. It is equally suitable for black-and-white and color photography.
HOW TO USE THE PETRI CdS EXPOSURE METER
Film Speed Indicator Shutter Speed
Dial
ASA Exposure Multiples 6,10, 25, ·
(64), 100, 200, 400, 800, 1600; 3200
DIN Exposure Multiples 9, 11, 15, ·
(16), 18, ~ (19), 21, 24, 27, 30, 33, 36
Set the Film Speed Dial (ASA or
DIN) to the corresponding number of
the film in use.
Slide the Exposure Meter into
position between the two-pin holders
located on the right hand side of the
camera body while pressing the Meter
Lock by thumb. The metal hooks of
the meter engage with the pins.View original page 8Page 9 · Read text
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Replacing the Mercury Battery
Unscrew the metal cap, which is located at the bottom of
the Meter by turning in an anti-clockwise direction.
Replace with a new Mercury Battery and ensure that the
positive (+) is facing the, outside of the battery
compartment.
(webmaster: mercury batteries are not found in the U.S.
anymore.
See this link on a Wein Air replacement battery.
Mercury Battery suitable for use with this meter is:
Mallory PX-13
Mallory RM625
Eveready E625
National M -1D
Toshiba TH-MC
G.E. 625 (these days you need a Wein Air battery to replace any mercury battery, they only last several
months, but are pretty cheap)
Rotate the Shutter Speed Dial on the CdS Exposure
Meter to the right or left until a slight click is heard
which indicates that it has engaged with the Shutter
peed Dial of the camera.
Point the camera at the subject. Turn the "H-O-L"
Switch to the " H " position when using under normal
daylight conditions. The " L" position is set when the
lighting is poor. (webmaster: The H - refers to High
Light Conditions, O for OFF and L for Low Light
Conditions)
Select the shutter speed, which is indicated by the red line on the left hand side of the meter. Read off the
aperture indicated by the red indicator needle by following the Guide Lines leading from the indicator needle to
the aperture scale. Transfer this aperture to the diaphragm of the camera lens.
In order to remove the meter, it must be remembered to press in the lock at the side of the meter.
In order to conserve the life of the Mercury Battery, turn the " H O-L" switch to the " O" position when the
meter is not in use.View original page 9Page 10 · Read text
DEPTH OF FIELD -
When the lens is
correctly focused on
a subject, you will
notice that objects
closer or farther
away become less
sharp, until they
become almost
completely blurred.
However you will
observe that there is
a certain distance
between the nearest
and the farthest
away subjects,
which still appear
sharp. This zone of
sharpness is called
the " DEPTH OF
FIELD".
In order to check the depth of field with the exposure setting in use, observe the figures engraved on the Depth
of Field Indicator on the Lens. These figures are aperture values and are indicated by black lines spreading out
on either side of the red diamond mark at their center. The black lines point to the distance scale and indicate
the depth of field at different distances according to the aperture used. For example: When f/16 is selected and
the focusing distance is 6 feet, the depth of field is approximately 4.6 feet to 10 feet. See the illustration.
INFRARED PHOTOGRAPHY
When taking infra-red pictures, reset the focusing distance to the red line indicated by the aperture f 1.8 (or f2)
on the Depth of Field Scale.
PETRI FILTERS - FILTER FACTOR
* Filters reduce the amount of light entering the lens, and when using them it is therefore necessary to increase
the exposure. This increase is called the FILTER FACTOR. As shown in the table below, when the Y2 filter is
used, it is necessary to adjust the shutter speed from 1/500 second to 1/250 second, or f/8 to f/5.6.
* The " UV" filter does not have a filter factor and an increase in exposure is not necessary. This filter therefore
also serves a useful purpose in protecting the lens from dust and damage.View original page 10Page 11 · Read text
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DIAPHRAGM ADJUSTMENT
Black & White Color
Y1 1/2 stop UV skylight none
Y2 1 stops W4 1/2 stop
YA3 2 stops C4 1/2 stops
R1 2 stops C8 1 stops
POO 1 1/3 stops C12 1-1/3 stops
P01 2 stops 85C 1/3 stops
NDX4 2 stops
PETRI INTERCHANGEABLE LENSES -
28mm f:3.5 Wide Angle Automatic diaphragm
35mm f :2.8 Wide Angle Automatic diaphragm
135mm f :3.5 Telephoto Automatic diaphragm
135mm f:2.8 Telephoto Pre-set diaphragm
200mm f :3.5 Telephoto Pre-set diaphragm
300mm f: 5.5 Telephoto Pre set diaphragm
400mm f:6.3 Telephoto Preset diaphragm
90mm - 190mm f :5.8 Zoom Lens
80mm - 200mm f:4.5 Zoom LensView original page 11Related documents and language editions
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PDF verified 2026-10-10.