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||Meter Coupling Range 22
3. Shutter-cocked indicator
4. Shutter release button
5. ASA window
6. ASA dial lock button
7. Shutter speed dial
8. Shutter speed index
10. Aperture read-out prism window
12. Film rewind knob/Back cover opener
13. Film rewind crank
14. Lens release lever
15. Self-timer lever/Depth-of-field preview lever
|16. Upraised alignment dot
19. Aperture/Distance index
20. Depth-of-field scale
21. Aperture ring
24. Neck strap ring
25. Viewfinder eyepiece
26. Film pressure plate
27. Guide pin channel
28. Winder/Motor Drive direct contact terminal
|30. Battery chamber
31. Motor Drive/Tripod receptacle
32. Film rail
34. Shutter curtains
35. Film rewind button
|36. Film transport coupler
37. Bulk magazine guide pin channel
40. Back cover
With the shutter speed dial set on B (bulb), the shutter will stay
open as long as you depress the shutter button. As you release your finger from the shutter button, the shutter closes. When a long exposure is desired while using the 8 setting, set the shutter button
lock by moving the lever to the left (an "L" becomes visible) while depressing the shutter button. Alternately, use a cable release with a
locking device for a time exposure. CAUTION:
Instant return mirror and automatic diaphragm.
Depth-of-field preview with self-timer lever.
4. To detach, hold the camera with your left hand. Depress the lens release lever while turning the lens counterclockwise with your right hand. www.4butkus.org
Two silver oxide batteries are packed separately. Be sure to
insert them into the battery chamber before operating the camera.
CAUTION: The battery is like a phonograph record, it can be
Open the battery chamber cover with
One set of batteries will last about one year, or
operate the shutter about 10,000 times. To check battery life, depress the
shutter release button halfway, while looking through the viewfinder. If the batteries are
dead, the LED dots will not glow. For replacement, use
1. Set Film Speed
While depressing the tiny button atop the shutter dial, turn the rim of the shutter dial until the ASA number of the film you are using is centered in the ASA window.
Cock the rapid-wind lever all the way until it stops. The "Cocked" indicator will turn red, showing that the shutter is cocked.
3. Set Shutter Speed
Turn the shutter speed dial until the speed you want to use is opposite the index mark. Generally, you should use the fastest possible shutter speed to avoid blurred pictures caused by camera movement. Try starting with 1/125 sec. outdoors in daylight and 1/30 sec. indoors. www.4butkus.org
4. Composing and Focusing
5. Turn on Exposure Meter and Rotate Aperture Ring
Hold your camera firmly and trip the shutter. Then cock the rapid-wind lever for the next picture. (As long as the lever is at its pre-advance angle, the light meter stays ON. If you push it back to the completely closed position, the meter is turned OFF.)
Open the back by pulling up
the rewind knob until the back opens.
2. Place the film cartridge in the film chamber, and push down the rewind knob. Insert the film
leader in between any of the white plastic pins surrounding the film take-up spool.
3. Advance the film by alternately
advancing the rapid wind lever and depressing the shutter button until both top and
bottom sprockets engage the film perforations. Close the back by pressing it firmly.
Cock the rapid-wind lever, and confirm that the film rewind knob turns counterclockwise, indicating that the film is properly loaded
and is moving from cartridge to take-up spool. Trip the shutter. Advance the film until the
exposure counter turns to "1 ", indicating that the first picture is ready to be taken.
As a reminder of the type of film in your camera, tear off
the top of the film box and insert it into the Memo Holder on the back of
The ASA film speed rating of all 35mm films is given in the data sheet packed with each roll of film. The higher the ASA number, the more sensitive the film is to light. While depressing the ASA dial lock button, turn the rim of the shutter dial until the ASA number of your film is aligned with the index mark.
Be sure to set the ASA film speed because it is coupled to the exposure meter system. www.4butkus.org
Turn the shutter speed dial clockwise or counter-clockwise to the
shutter speed desired. The shutter speed may be set either before or after cocking the rapid-wind lever. As you cock the shutter by
turning the rapid-wind lever, the "cocked" indicator turns red showing that the shutter is cocked. The color of the cocked indicator changes to black after tripping the shutter. For use of the X setting
on the shutter speed dial, refer to page 18.
At long speeds, longer than 1 /30 (1/15 - 1 sec.) support your camera rigidly to prevent camera movement. To protect the shutter mechanism, trip the shutter before putting the camera away for any extended period.
With the shutter speed dial set on B (bulb), the shutter will stay open as long as you depress the shutter button. As you release your finger from the shutter button, the shutter closes. When a long exposure is desired while using the 8 setting, set the shutter button lock by moving the lever to the left (an "L" becomes visible) while depressing the shutter button. Alternately, use a cable release with a locking device for a time exposure.
|The standard focusing screen of your MX has a central split-image circle surrounded by a microprism collar. While looking through the viewfinder, turn the focusing ring until your subject comes into sharp focus. If your subject is not in focus, the image in the split-image circle will appear divided into upper and lower portions, and the image in the microprism collar will appear broken into many small fragments.|
|When the rapid-wind lever is pulled out 20°
and the shutter button is depressed halfway, the exposure meter is turned ON. Turn the
aperture ring to get a proper LED exposure read-out in the viewfinder.
Hold the camera firmly with your left hand, and draw your arms close to your body
|After the final picture on the roll has been taken, the rapid-wind lever will not advance further, indicating that the film must be rewound. Lift up the rewind crank. Depress the film rewind button and turn the rewind crank as indicated to rewind the film into its cartridge. Rewind until the tension on the crank lessens, indicating that the leader end of the film has been released from the take-up spool. Pull out the film rewind knob (the back will open automatically), and remove the film cartridge.|
|The MX has FP and X terminals on the front of the camera body, and a separate X contact on the built-in hot shoe. The table on the next page shows which flash contact, which shutter speed and which flash bulb may be combined for maximum lamp efficiency. Unless these combinations are rigidly followed, there will be a failure in flash synchronization. Note the "X" setting is exactly at the 60 mark on the shutter speed dial. This indicates the highest shutter speed at which electronic flash units may be used. Use the hot shoe flash contact when using a shoe mount electronic flash like the Pentax Autostrob which has a flash contact on the shoe bracket. When using the hot shoe, there is no need to plug the flash cord into the X terminal on the front of the body. The hot shoe flash contact turns to "hot" (switched on) only when you insert a shoe mount electronic flash. It remains "cold" (disconnected) even when using an electronic flash with its cord plugged into the X terminal on the body front. This eliminates the danger of electric shocks.|
Or, after focusing, look at the depth-of-field scale on the lens. In the
photograph below, the distance scale is set at 5 meters; that is, the lens is focused on a subject 5 meters away. The calibrations on each
side of the distance index correspond to the diaphragm setting and indicate the range of in-focus distance for different lens apertures.
For example, if a lens opening of f/4 is to be used, the range on the distance scale ring covered within the figure 4 on the depth-of-field scale indicates the area in focus at that lens opening. You will note from the depth-of-field scale in the photograph that the range from
approximately 4 to 7m is in focus. Note that as the lens aperture changes, the effective depth of field also changes. For the depths of field at different apertures and distances, refer to the next page.
www.4butkus.org Use of other K Series accessories - standard Extension Tube Set
K, Helicoid Extension Tube K, Auto-Bellows K and Bellows Unit K - requires stop-down metering.
Whenever any one of these is used between the camera body and an SMC Pentax lens, the
stop down metering system must be used. Clean, plain cotton handkerchiefs that have already been washed a few times are
particularly good for this. Breathing on the lens before wiping is effective; but be sure to wipe
away all moisture completely. Commercial lens cleaners are also effective. WARRANTY POLICY
There are basically two types of flash bulb attachments on the market: clip-on types and
bracket types. Either can be used with your camera. The clip-on types are attached to the hot
shoe and the bracket types are attached via the tripod socket.
Depth of field is the range between the nearest and farthest distances
which are in focus at a given lens aperture. If you want to know how great the depth of field is at a certain aperture, focus on a subject
and look through the viewfinder while moving the Self-timer lever toward the lens, and you will be able to preview the depth of field.
2. When using the 50mm f/1.4 lens, accurate exposure measurement at the points found in the shaded area in the above table can be guaranteed only when using up to f/16 (f/1.4 - f/16).
HELPFUL HINTS ON EXPOSURE PROBLEMS
The exposure meter built into your MX takes a center-weighted reading from the entire scene as seen through the viewfinder. Sometimes, however, there is a great difference between the light reflected from the background and the light reflected from the subject. In such a case, to achieve a really good photo, you must compensate for the difference by opening or closing down the aperture 1 or 2 stops. As a general rule, when the subject is darker than the background, you compensate by opening your aperture 1 or 2 stops more. For example: on a bright day, when your subject has his back to the sun and you are shooting directly toward the sun ... or when you are shooting a subject against snow or light-colored sand ... or when you are copying a page of black letters on white paper, increase the size of the aperture somewhat. When your subject is brighter than the background - if he is standing in a spotlight, for example - you make the aperture 1 or 2 stops smaller to compensate. www.4butkus.org
DUAL CONTROL EXPOSURE SYSTEM
Since both the aperture and shutter speed are indicated within the viewfinder, you can control exposure by adjusting either the shutter speed dial or the aperture ring. When the aperture size is the most important factor, set the aperture desired by turning the aperture ring. Then adjust the shutter speed dial until the green LED illuminates.
The shutter button lock lever is for your convenience while
you are making a particularly long exposure using the B shutter speed setting.
After depressing the shutter button, turn the lock lever (which is on the collar at the base of the
shutter button) so that the letter "L" is visible. When the exposure time is up, move the lock
lever back to its original position. This automatically releases the shutter button. In
addition to making "Time" exposure, the lock lever is also used to turn off the meter circuit and simultaneously prevent accidental release of the
The Self-timer delays the shutter release by 4-.12
seconds, depending upon how far counterclockwise (when camera faces you) the lever is
advanced. When using the Self-timer, do not depress the shutter button ...
it will immediately release the shutter without delayed action. After cocking the rapid-wind lever, advance the Self-timer lever 90°
-180°. Then, push the
If you intend to take infra-red photographs, remember to use the infra-red mark indicated with an orange line on the depth-of-field scale. First,
bring your subject into sharp focus. Then determine the subject-to-camera distance from the
distance scale on the lens. Then match your subject-to-camera distance to the infra-red mark
by turning the focusing ring accordingly.
NOTE: An infra-red focusing adjustment is not required when working with infra-red color film.
For deliberate multiple exposures, make the first exposure in the normal way. Then tighten the
film by turning the rewind knob , and keep hold of the rewind knob. Depress the film rewind
In addition to the standard split-image + microprism focusing screen, there are 7 other interchangeable focusing screens available for your
Conventional screw-mount Takumar lenses (both
Super-Takumar and SMC Takumar) can be easily mounted onto your camera by attaching them
first to a Mount Adaptor K. However, when Adaptor K is used, the following is true:
How to Use Mount Adaptor K
Takumar lenses can then be attached in the normal way.
Open-aperture SMC Pentax lenses have a
1. Always keep the viewfinder eyepiece, lens and
filters as clean as possible. To remove loose dust and dirt, first use the blower and then the brush of a lens brush. Do not try to wipe off granular dirt or dust -
it's an excellent way of scratching the glass. Smudges, such as fingerprints, should be
carefully wiped away with either lens tissue or a clean, soft cloth.
4. Your camera is not waterproof. There are several places where water can get inside and do a great deal of damage. Take care to protect both body and lens from rain or splashing water. If
5. Where to keep your camera while you are not using it is an important point. The best storage place is cool, dry, clean and well-ventilated. Because of the possible build-up of humidity, it
6. When mounting your camera on a tripod, be sure the tripod screw is no longer than 5.5mm.
This is the depth of the tripod socket on your camera. If you use a longer screw, you will
Or, after focusing, look at the depth-of-field scale on the lens. In the photograph below, the distance scale is set at 5 meters; that is, the lens is focused on a subject 5 meters away. The calibrations on each side of the distance index correspond to the diaphragm setting and indicate the range of in-focus distance for different lens apertures. For example, if a lens opening of f/4 is to be used, the range on the distance scale ring covered within the figure 4 on the depth-of-field scale indicates the area in focus at that lens opening. You will note from the depth-of-field scale in the photograph that the range from approximately 4 to 7m is in focus. Note that as the lens aperture changes, the effective depth of field also changes. For the depths of field at different apertures and distances, refer to the next page. www.4butkus.org
Use of other K Series accessories - standard Extension Tube Set K, Helicoid Extension Tube K, Auto-Bellows K and Bellows Unit K - requires stop-down metering. Whenever any one of these is used between the camera body and an SMC Pentax lens, the stop down metering system must be used.
Clean, plain cotton handkerchiefs that have already been washed a few times are particularly good for this. Breathing on the lens before wiping is effective; but be sure to wipe away all moisture completely. Commercial lens cleaners are also effective.