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SHOOTING AGAINST THE LIGHT

When the light is available from the back of the subject and your main subject is comparatively darker than the back-ground, it is recommended to adjust the exposure condition. The procedure is same as required when the important subject is dark. (Refer to TO ADJUST THE EXPOSURE CONDITION at page 15.) First, set the exposure in the EE photography and read the f/number in the viewfinder. Then, rotate the diaphragm ring to the right and set the f/number at a half or one stop closer to the full aperture than the f/number indicated in the viewfinder when you have set the exposure for the EE photography.4www.butkus.org

VIEWFINDER AND FOCUSING

PETRI FT EE 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 (A) in the viewfinder, you can see the subject clearly, ON LY when 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-prism area. In the second inner circle (B) 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 (C)4www.butkus.org

DEPTH OF FIELD

A lens that can be focused lets you accentuate the important image in a picture, while it can de-emphasize irrelevant objects in front of and behind the main subject 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.

HOW TO 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.4www.butkus.org

For example, the depth-of-field zone for the standard 55mm lens is indicated as follows: When the focusing distance is 8 feet and the f/11 is selected, one of black lines at f/11 points to 6 feet, the nearest point still in focus, and the other points to approximately 12 feet on the other side, being the furthest distance in focus.


PETRI F/1.8 55mm DEPTH OF FIELD TABLE

The figures corresponding to 8 feet and f/11 are shown as 6.15 and 11.45, that is 6.15 feet, the nearest point in focus, and 11.45 feet, the furthest distance in focus.

HOW TO HOLD YOUR PETRI FT EE CAMERA

The format of your picture is determined by the position in which you hold the camera. Holding the widest part in a horizontal position 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. Use the following three simple rules for taking a picture to avoid 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.

Fl LM LOAD I NG 

PETRI FT EE accepts the standard 35mm cartridges containing 12, 20 or 36-exposure lengths of film. Avoid direct sunlight falling on the film cartridge.4www.butkus.org

Load the film in a shade, using your body with your back to the sun as protection if you have no other method.

1. TO OPEN THE CAMERA BACK
Pull down the lever with your thumbnail and open the camera back. At the same time, the exposure counter automatically returns to "S" (which means "Start") position.

2. TO PULL OUT THE KNOB
Pull out the film rewind knob on top of the camera. This is to allow the film cassette to be put into the cassette chamber.

3. FILM LOADING
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.

4. TO ADVANCE THE FI LM
Advance the film advance lever a little and see that the film is fastened round the take-up spool, before closing the camera back.

5. TO CLOSE THE CAMERA BACK
  The camera back will be locked with a snap by a slight pressure.

6. TO RELEASE THE SHUTTER AND ADVANCE THE FILM
Repeat this action twice, and you are ready to take your first picture.

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.4www.butkus.org


FILM UNLOADING

After the entire length of film in the cartridge has been exposed, it must be removed into the film cartridge so it can be removed from the camera.

1. TO REWIND THE FILM
Depress the film rewind button located on bottom of the camera body. Raise the film rewind crank and turn it in the direction indicated by the arrow. You will feel a little tension on the crank while the film is being rewound. When the tension stops, you know that the rewinding is complete.

2. TO REMOVE THE CARTR I DGE
Pull out the film rewind knob and remove the film cartridge.  Avoid direct sunlight when removing the film cartridge from the camera. Also, the camera lens should face downward while the cartridge is being removed so as to prevent it from dropping out.

HOW TO CHANG E YOU R L ENS 

( 1 ) REMOVING THE LENS Turn the Lens Mount Ring in a counterclockwise direction until the red mark appears on top of the lens barrel. The lens can then be removed from the camera.4www.butkus.org (2) INSERTING THE LENS Line up the red dot on the camera body with that on the lens mount ring. Then insert the lens making sure that the protruding lock on the bayonet mount of the lens is on the top. When the lens is in position, turn the lens mount ring tightly in a clockwise direction.

FLASH PHOTOGRAPHY

When the exposure meter needle in the EE photography jumps up to the under-exposure warning mark (see page 14) and even a slower shutter speed can never make it come down to the diaphragm scale area, it shows that the lighting condition is too poor and that you must switch to flash photography. Photography with flash not only extends your picture possibilities greatly but adds excitement and drama to your pictures. The use of flash equipment with your camera is relatively simple because it has built-in synchronization. It is equipped with X synchronization. (The shutter speed at "X" is 1/45 second.) Therefore, both electronic flash and ordinary single exposure flashbulbs can be used.

PETRI FT EE is equipped with both a "hot shoe" contact for cordless unit and a standard PC terminal for one that has a cord. If you use a cordless unit, merely slip the foot of the unit into the shoe on top of the camera body and it will automatically make contact with the shutter mechanism. If the unit has a cord, simply plug the cord into the PC flash outlet. When using F class, M class and FP class flashbulbs, or an electronic flash unit, shutter speeds must be selected according to the table. (Speeds within the colored area are available.)4www.butkus.org


EXPOSURE CONTROL IN FLASH PHOTOGRAPHY

In flash photography the FE exposure control can not be used. The exposure depends on the shutter speed, the aperture opening, the film speed and the distance of the light from the subject, but if the shutter speed is constant and also the film speed is assumed to be constant, then the f/number required varies according to the lamp-to-subject distance.

In another word, for any given shutter speed and film speed, the product of the aperture opening and the lamp-to-subject distance becomes a constant, and this constant is called the Guide Number. Thus, the f/number is calculated by the following formula:

Guide Number = Distance x f/number OR YOU CAN USE   f/number = Guide Number / Distance 

For example, in case a flashbulb of the FP class is used and the guide number corresponding to the ASA (or DIN) index and to the shutter speed selected is supposed to be 74, then the f/number, if the lamp-to-subject distance is 10 feet, will be about 8, because 74 / 10=7.4 / 8. No great accuracy is required in this calculation, and a quick mental division will give an f/number for any distance. In all cases, the nearest click-stop or 1/2 stop will be close enough for a practical work. The guide numbers are usually indicated on the packages of your flashbulbs or in the instruction manual of your strobe.4www.butkus.org


HOW TO USE BUILT-IN SELF-TIMER

Swing the self-timer lever in the direction indicated by the arrow as illustrated. Release the shutter button, and the frame will be exposed after a delay of approximately 9 seconds. The self-timer can be set at between positions within the range of solid line) so as to shorten the release time and also be set either before or after advancing the film. All shutter speeds except B setting can be used with the self-timer. The self-timer is usually used when the photographer wants to join a group which he is photographing. It is also useful for photomicrography or when using a long focal length lens. In all cases the use of a tripod is recommended.4www.butkus.org

INFRA-RED PHOTOG RAPHY

When taking infra-red pictures, reset the focusing distance to the red line indicated by the aperture f/1.8 on the Depth of Field Scale.

MAINTENANCE AND CARE OF YOUR PETRI FT EE

A few simple precautions, careful handling and immediate attention in case of trouble will prolong the life of your camera and keep it operating well in definitely. Follow these simple rules:

1. When cleaning the outside of the camera, first use a soft brush and then a soft cloth.

2. Remove dust and sand that enter the camera while it is open immediately, using a camel-hair brush or a hand-blower.

3. Dust, fingerprints, water drops, etc., on the lens not only affect picture contrast but, if left for a long time, they will attack the surface.

4. Should your camera fall into water, immediate attention is imperative. Bring it to a repair shop at once. If it falls into salt water, rinse it thoroughly in fresh water and then deliver it to the repairman.

5. Your camera, when not in use, should be protected from damp and dust. Preferably in its case and, as an additional precaution, inserted into a polythene bag.

6. Be sure that your camera is not kept in abnormally high or low temperatures--normal room temperature is best.

7. Before storage, release the shutter and relieve a tension of every apparatus. When you store your camera for a prolonged period, remove a battery and avoid a risk of deterioration and corrosion.4www.butkus.org

8. Do not leave your camera without use for along period. Your camera, as any other me chanical instrument, needs to be exercised regularly to keep it in good condition. Set the shutter release and fire, turn to a slow shutter speed and again set the shutter release and fire.
Also, operate the self-timer. Examine the exposure meter for correct operation. Check film transport. Check the Pentaprism view finder.
These actions will keep the mechanism in good order, retaining the natural qualities of the lubricant--thus ensuring your camera is ready for an instant use when required.


PFTRI  INTERCHAGEABLE LENSES

PETRI FT EE accepts a wide range of Petri interchangeable lenses from 28mm wide angle to 1000mm telephoto, unparalleled in quality and design. The built-in CdS meter is geared to these interchangeable lenses which include Petri's original Periscope telephoto lens. Petri 35mm f/3.5 and 135mm f/3.8 both with the automatic diaphragm, specially designed for PETRI FT EE, allow the automatic exposure control and therefore, specify these lenses when you buy the 35mm and 135mm focal length lenses. Other interchangeable lenses are not fully coupled to the EE system. (As to the exposure control for the normal lenses, see TO USE NORMAL LENSES at page 16.)4www.butkus.org

28mm ft3.5 wide angle with automatic diaphragm 35mm f/2.8 wide angle with automatic diaphragm, special design for the FT EE 100mm f/4.5 Periscope telephoto with preset diaphragm 135mm f/3.5 telephoto with automatic diaphragm 135mm f/3.8 telephoto with automatic diaphragm, special design for the FT EE 200mm f/4 telephoto with automatic diaphragm 300mm f/5.5 telephoto with preset diaphragm 400mm f/6.3 telephoto with preset diaphragm 500mm f/5.6 telephoto with preset diaphragm 1000mm f/8 telephoto with preset diaphragm 80 ~ 200mm f/4.5 Zoom with automatic diaphragm 85 ~ 210mm f/4.8 Zoom with preset diaphragm

PETR I ACCESSORIES 
A complete range of filters, lens hood and other attachments such as extension tubes, bellows, eye-cups, etc. are available to meet any photographic situation. Through-The-Lens exposure system equipped in your PETRI FT EE gives the optimum exposure reading even when using filters, close-up units or in photomicrography.

FILTERS

Essential for first class photographs. Select the proper filters for your needs.

For Black & White Film:

FILTER TYPE FACTOR COLOR PURPOSE

Y1         1.5X     Light Yellow         Landscapes, snow, clouds.     Renders yellow and green lighter.

Y2         2 X     Medium Yellow     Gives stronger effect than Y1.

YA3     4 X     Orange Haze distant views. Renders yellow and red lighter, blue darker, distant objects clearer.

R1         8 X     Red Hazy distant views. Renders red lighter, blue and green darker. 
                            Gives stronger effect than orange filter.

PO0     2.5X     Green Landscapes, snow, clouds. Renders green lighter. Red (complexion) and blue darker.
                             Recommendable for portraiture.

P01     4 X     Medium Green     Gives stronger effect than PO0.

For Color Film:

FILTER TYPE FILTER COLOR PURPOSE

UV         no increase         Clear Absorbs excessive UV. Also suitable for black-and-white.

1 A         no increase         Light Pink To eliminate haze and for use at altitudes over 3,000 ft.

W4           1.5X                 Medium Amber Reduces excessive blueness of sky on a cloudy dad.

C4           1.5X                 Medium Blue For early morning or evening shots.

C8            2 X                 Dark Blue Conversion filter for use when using 'Daylight Type' color reversal film 
                                        with white flash bulbs.

C12         2.5X                 Dark Blue Conversion filter for use when using 'Daylight Type' color film
                                        with photoflood lamps.

85C     no increase         Dark Amber Conversion filter for use when using 'Artificial Light' 
                                        film in daylight.

NDX4     4 X                 Neutral Density Neutral Density for sunny subjects. Can also be used for black and-white.

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