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Microcord Guide Reference guide

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Brand
Microcord
Model / document
Microcord Guide
Document type
Reference guide
Language
English
Pages
94
File size
2.7 MB
Category
Film cameras
Document date
Not specified in catalog

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Page 5 · Read text
THE MICROCORD

          The success of the twin-lens reflex camera is unquestion-
          ably well deserved. As a type it shares pride of place with
        thd precision miniature, advanced amateur workers and
       many professionals usually using either one or the other.
         The-ease and certainty of viewfinding and focusing on the
           reflex screen is a contributory factor to its popularity; but
          these features would be largely negated  if they did not result
            in pictures of outstanding definition and qualit/, and there is
         no'doubt that the twin-lens camera owes as much to the
          optical precision that has become associated with it as to
             its basic type.
            This was evidently-Kingston-on-Thames,appreciated by Messrs. Micro Precision          Products, Ltd., of                     in producing the
         Microcord since ,952, The result has proved to be par-
           ticularly successful, and the camera has achieved a reputation
        worthy of the best twin-lens traditions for its precision
          handling and performance.
          The Microcord twin-lens reflex camera takes l2 exposures
        2[x2[ in. (6 x6 cm.) on standard 120 size roll films.
        Two lenses, matched for focal length, are mounted one
         above the other on a common lens panel. One of them
           projects an image of the subject, via a mlrror, on to.a ground
           glasi screen in the top of the camera, while the other
                                                                          glass          lrojects a similar image on to the film. -The ground         image therefore shows at all times the full-size Picture-
           upright, but reversed left-to-right-as  it will aPPear on the
          nbgaiive. To compensate for any parallax between the view-
           ing-and taking lenies, masking stfips are included below the
          scfeen and th-ese are automatilally controlled by the focusing
          mechanism.
          The camera is 5{ in. high, 4 in. deep and 3f in. wide, and
              it weighs 32 oz. The body is an aluminium alloy Pressu.re           die-caiting, which providbs strength and rigidity. The
          exterior is anodised and dyed black, while the fittings are
                                                               and     4 diamond turned and chromium plated. The sides, top
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Page 6 · Read text
THE TWIN.LENS REFLEX SYSTEM
  The twin-lens reflex is virtually two
  cameras in one. The bottom Part takes
  the picture, and the toP Part is a focus-
  ing viewer. The lenses are accurately
  mitched and are fitted to the same focus-
   ing panel, so what you see on the screen
  you get on the film. Note, however, that
   the streen image is reversed left-to-right.





         The Microcord taking lens is a
         high performance 77.5 mm. Ross
         Xpres F 3.5. lt has four glasses, the
         rear pair cemented.
View original page 6
Page 7 · Read text
back are trimmed with black grained plastic covering, which
    is waterproof and extremely durable.
    The ground glass screen on top of the camera is protected
  by a folding hood. This is self-erecting, and when opened  is
  2[ ln. high and effectively shades the screen; it carries a
   magnifier for critical focusing. A frame finder for eye-level
   dlrect-vislon used is incorporated in the hood.

  Irenses and, Shutters
   THE TAKING LENS is a 3 in. (77.5 mm.) Ross Xpres f 3.5,  a 4-glass anastigmat coated on all surfaces; it is supplied to
  the manufacturer's tolerance specification and gives a ver),
  high performance.
   THE VIEWING LENS is a 3 in. (77.5 mm.) Ross f 3.2 3-glass
  anastigmat, fully coated and giving a brilliant image of
  excellent definition that permits critical focusing.
   THE SHUTTER is the Prontor SVS, the taking lens being
  mounted in it. lt has 8 speeds (1,ll2, l/5, l/10, 1125, |,150,
   l/100, l/300 sec.) and "B" for tlme exposures, a built-in
  delayed action mechanism for self-portraits, and it is fully
  synchronized for electronic flash and flash bulbs at all speeds.
    The lenses and shutter are enclosed in a casing, and this has
  a peep window in the top to show the shutter speed and
  lens aperture, which are set by thumb wheels mounted on
  the front at either side.

  Focusing
    The Microcord ls focused by a knob on the right-hand side.
  The mechanism is cam operated and controls both lenses
  smoothl)' and simultaneously. A depth of field scale is
  incorporated In the side plate of the camera and is used in
  conjunction with the distance scale on the focusing knob.
  The back of the camera hinges open to insert and remove
   films, and it carries a spring-loaded pressure plate to locate
6 the film in the focal plane.
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Page 8 · Read text
MICROCORD MODELS





      Model ll replaced Model l" The exposure counter  is
     set automaticall/, the shutter is a Prontor SVS withI     M, X, V control, and the screen hood incorporates a
     frame  fi nder.





      Model I has a red window in the base to set the film
     for exposure No. l, an Epsilon shutter, and eye-levelI  screen focusing-
View original page 8
Page 9 · Read text
5

Film Wind
  The film is wound on by a large knob. The rotation of
this is checked automatically when the correct amount of
film has been wound on to biing each new frame of film into
position, and a film counter dlal registers the number of
exposu res.
  Th. tripod bush is located in the base of the camera and
has a substantial boSs which ensures firmness when mounted
on atripod. lt has the Continental thread (8 in. Whit.)' and
                                                   adapterthe camera is supplied with a British size
(* in. Whit.).
 '* A       6f accessories are specially made. for the Micro-
cord,      '".nguani most of the attachments produced for the Rollei-
cord cameras may also be used with it.

The Microcord Models
  MlcRocoRD  ll, introduced in 1954, replaced the original model
 now called Model l) and is as described above.
                                                        1952, is basicallyo MICROCORD  l, the original model introduced in
 r'irii". t" ifr" modut  ll but-has several features which were chan-ged.or imoroved uoon in the new model. The shutter is the 8'sp9ed E-psilon
 i::f';-i'bi'.  [, llz, lls,l/10,  I i25, 1150, li 100, l/300 sec.), which has no
 ielayed action'deviie, and is F-synchronized in the earliest cameras or
 X:;;*h;;ized  in later ones. the camera back.has.a  spri-ng. clip for
 i"ri[,ni"s. ana   different pressure plate design. In place of the frame                                                and focusing on n"a". iri'the hood"   a mirror is fitted to enabli viewing
 itr" rlr""n at eye level. The film wind mechanism is not autom-atically ensased on clojing the camera back after loading a film, but the film has                                                                  base, and the fi;ili; G *;unJ?" No. I in a red window in tte camera
 *i"ai"ir"chanism then put into action by tripping a catch on the body
 near the winding knob.
  The manipulation of the two models is substantially the
 same; wheri there are differences these are Pointed out in
 the text.




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View original page 9
Page 10 · Read text
HANDTING THE MICROCORD
    It.is imp-ortant to get thoroughly acquainted with the
 working of a camera before actualiy seiting out to take
 photographs with. it.. After all, you would try the gears, the
 accelerator, the brakes and even the horri of a new car
 before going all out with it.
  The same is true about cameras. Going all out with a new                                            -right camera before you are able to do the       thing almost
 without thinking is no less dangerous than d-riving forth in a
 new car. lt may be less wasteful of lives-but  ii is not less
 wasteful of live pictures. The fact that the Microcord is of
 an almost fgglproof                        !yp.e, with which. nothing much can to wrong  if well handled, should not lead to neglect.

toading
  To start with, we take it for granted that we have our
 Microcord and a film in front of us. Our task is to load the
camera with film. Do it in subdued daylight, or at least in
the shadow of your body.
    l. Open camera back.
  2. Place empty take-up spool into top film chamber.
  3. Insert new film into bottom chamber.
  4. Fix paper end to take-up spool.
   5. Wind arrow on paper leader to red dot on fllm
     track.
  6. Close camera.
  7. Set for first exposure.
 l. To ope.n the camera back, hold the camera upside down, and turn the
   safety lock in the- direction of the-engraved arrow. Then press the
   projecting end                  the latch away from camera body, and sl'ring the                        -of   back open on its hinges.
         Microcord |,has no safety lock, otherwise the procedure is the   ,.J!:
2. The empty spool, which may be in the bottom chamber, has to be
,  transferred into the top chamber. To remove and fit the spools the 9
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Page 11 · Read text
camera has spring-loaded spool pivots; you pull these out and turn             {
     them a little so that they lock in the extended position. Place the
      empty spool into the top chamber so that the slotted end engages in      the driving dog on the film transport spindle. Now allow the pivot                III
       to spring blck by turning it to its original position, making sure that
           it enterithe hole in the end of the spool and goes fully home.
    3. Breakthe seal of the roll of film and insert  it in the bottom chamber
      so that backing paper runs off the bottom of the spool. Turn the
       pivot so that itsprings back to enter the hole in the spool and hold
       the roll of film in its correct position.
       ,rf. Draw the paper end over the film rollers and film aperture to the           J
      empty take-up spool. Insert the end of the paper into the wide slot
      of the take-up spool, and make a three-quarters turn on the film
      transport knob to tighten the film and prevent the paper end from
       slippihg out of the slot. At the same time make sure that the paper
      runs perfectly straight from spool to spool.
    5. With Microcord  ll, nowwindon until the triangular marks (on some
      makes of film a double arrow) on the advancing backing paper are in
        line with the red dots at the side of the film track, then stop.
    6. To close the camera, push the back panel against the body and engage
      the latch. Now turn back the safety lock. Microcord  I has no safety
        lock, otherwise the procedure is the same.
    7. Microcord  ll. To get the film ready for the first exposure, wind the
       film transport knob until it comes to a definite stop. The film
      counter will have set itself automatically and register No. l.
      Microcord l. Slide open the cover of the red window in the base
        of the camera, wind the transport knob until a hand, then a sequence
       of four dots, and finally the No. I appears in the red window. Now
       close the window as it has fulfilled its purpose.
       To set the automatic film counter, depress the centre of the film
       transport knob while at the same time pushing backwards the small
      chromed milled knob below the transport wheel. No. I will now
       automatically appear in the film counting window. (lf, when turning
      to set No. I in the red window, the knob should prematurely come
      to a definite stop, depress the centre of the knob in order to free it
       so that you can continue winding.)

   Holding
     Hold the camera as stead), as possible, as the slightest
   shake, even if its effect is not visible in the negative, will
   become apparent in the enlargement. Always stand with
   your legs apart for extra steadiness.
    When working with the reflex finder at chest level, place
10 the camera in the palm of the left hand, cock the shutter,
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View original page 11
Page 12 · Read text
LOADING


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       s
    l. Open the camera. 2. Insert an empty take-up spool. 3. Insert the spoo! of
size 120 film. 4. Attach the paper leader to the take-up spool. 5. With Model ll,
wind paper leader until the arrow registers against the red dots on the film track,
then closethe back; with Model  l, close back, and wind to No. I in the red window.
6. With Model  ll, wind until the knob is checked, when No. I will have appeared
in the counter window; with Model  l, depress the centre of the winding knob and
trip the counter catch, when No. I will appear in the window.

                                 N@,@



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View original page 12
Page 13 · Read text
then let the thumb and index finger of the right hand rest
   on the focusing knob.
    When using-the eye-level finder, hold the camera so that
   the eye is level with the back sight in the focusing hood.
   Cock-the shutter, then grip the body with both hands, plac-
    ing the index finger of the right hand on the release button.
    Pr-ess the camera body against the nose and forehead to give
     it additional support.
    To release the shutter, press the release button with the
   index finger of the right hand. Use finger pressur" on!y,
   keeping the hand and its grip steady on the camera. The
    actual pressure must be slow and smooth. The slower the
   exposure time, the smoother must be the release, as the risk
    of camera shake is greater.
     For slow speed exposures in the hand when working at
   chest level, it is advisable to inhale, hold the breath and
   release smoothly in order to avoid shake.
    When using long exposures while holding the camera at
   eye level, rest the camera against some suPPort or at least
   lean against something stable. In this way l/10 sec., or
    longer, can be risked without incurring camera shake.
   A tripod is necessary when taking time exPosures.or
   working with the delayed action release. lt ls also advisable                                                      )I
   for speeds of l/10 sec. and longer.                                                                                 {!

                                                                                                                                                                                                                                                                            I6   Carrying
    However elegant it may be to carry the camera on a long          {   strap hanging from the shoulder, this position is quite                    I
    unsuitable-for quick action. Many a good shot has been lost                                                                                                           I    in this way. A better method is to carry/ the Microcord on a
   short strap around the neck at chest level-in the right
   -position ready for work.                                                                                                             I       lt is advisable to use the camera in its ever-ready case,               I
   which enables the Microcord to be operated without remov-
    ing it; there is a holding screw which Prevents the camera
   from falling out.                                              A,l
      Outfit cises are available to take the camera together with                           j
12 filters, films, close-up lenses, etc.                                                                                              j
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                                                                                                                 I
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Page 15 · Read text
Shooting
    We assume that the camera has been loaded and the film
    advanced to No. I as instructed on page 9.
        l. Set shutter speed and cock shutter.
      2. Set aperture.
      3. Focus and arrange the picture.
      4. Release.
      5. Transport fllm.

       l. The shutter of the Microcord ll is the Prontor SVS, its speedsare          l, l12, ,15, lll0, l/25, l/50, l/100, l/300 sec., and B for brief time
        exPosures.
          Set the shutter speed by turning the right-hand side thumb wheel
         until the required speed appears in the peep window above the
       viewing lens. The values given  (l ,2, etc., to 300) are fractions of
       seconds and stand therefore for I sec., l/2 sec., l/50 sec., etc.
        The shutter is cocked (this can be done before or after setting the
        shutter speed) by pulling the lever projecting below the taking lens
        in the direction of the cable release socket.
       On the B setting the shutter remains open as long as the button
       remains depressed, and closes when the button is released. To
       produce long time exposures, a cable release with fixing screw has to
      be employed at B setting. The cable release is screwed into the
        socket situated on the camerafront opposite the release button. On
         pressing the cable release down and tightening the fixing screw, the
       shutter remains open until the fixing screw is released.
      A delayed action release (self-timer) is built into the Prontor SVS
       shutter of the Microcord  ll and is automatically set on cocking the
        shutter, so that it is alwa)rs ready for use. To bring it into action,
        set the "M-X-D" lever on the side of the lens casing to the position
      marked "D" (engraved in green). On pressing the shutter release
       button the delay mechanism starts to operate and releases the
        shutter after a delay of approximately l0 sec. This delay enables the
       photographer to appear in the picture himself, provided, of course,
       the camera is placed on a solid support.
         The Microcord  I has an Epsilon shutter with the same speeds and
        handling as the Prontor SVS described above, but no delayed action.
         In addition to the "B" setting  it also has a "T" setting for long time
        exposures; with this, on pressing the release, the shutter will open
       and remain so until the release is pressed a second time to close'it.
       How to choose the right shutter speedis explained under Exposure,
t4     and fhe Right Negotive on pages 47 and 48.
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Page 19 · Read text
l'-
             VIEWING Ar{D FOCUSING
           The reflex finder is a viewing-cum-fiocusing device. The
             image, formed by the finder lens, is reflected bly a 45. mirror
          on to the ground glass screen in the top of th'e camera, and
              this shows the exact area of the picture, as well as providing
            the means of getting the picture ieally sharp on the'film
         Viewing
            There should be no difficulty in arransins the plcture as                                                   -hood 'is            required in the finder. The ielf-eredi;g            usually
              sufficient to ensure a clear                                                              b-ut you can if yoir                                                   .bright- !mag-e,             like use a hood extension (page 8l) which fuither prot6cts
           the screen from stray light and so-makes the image appear
           even brighter.
                In spite of the fact that you are likely to hold the camera
            reasonably level, make sure that the vertical lines of the
            picture run parallel with the sides of the ground glass frame.
          You can of course tilt the camera intentionally to get special
             angle shots, but  if so seethatthe effect does riot ljok like an
             accidental tilt.
           The picture on the ground glass screen is upright but it is
            reversed left-to-right. Therefore movements'arJalso shown
           reversed left-to-right, and the camera has to be turned
            against.the apparent movement of the object to follow it.
          Here the frame finder of the Microcord ll'is an advantage;
          you look-directly at the subject through the open frame and
          you can follow moving objects more easily.
          THE FRAME FINDER of the Microcord  ll is brought into
            action by pressing in the front of the opened hood; this
            causes the built-in magnifier to spring up-while the hinged
             front flap folds downwards to be retained in this position by
            a spring catch. Pressing to the left the stud at the-rear of th-e
             finder hood releases the catch and the front flap springs back
             into its normal position.
         When using the frame finder look through the square
            aperture at the rear of the hood, but do not atlempt to turn                                www.butkus.us

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Page 20 · Read text
THE SQUARE SHAPE





  Occaslonally the square format
suits a plcture, but a rectangular
shape is usually morc pleasing.
The main advantage of a square
negative is that you can obtain
either a horizontal or a vertlcal
picture without having to turn the
camera on its side.
View original page 20
Page 21 · Read text
the camera to the right or left away from the eye, nor try to
   move the eye from the centre of the back sight. This "spying
   round the corner" is deceptive, as only that section will
   appear on the negative which you see in the finder looking
    straight ahead with the eye close to and in the centre of the
    opening.
    The Microcord  I has an eye-level reflex finder instead of a
   frame finder. There is a mirror in the focusing hood which
   can be swung into position by pushing up a lever on the
    right-hand side of the hood. You can then view and focus
   the ground glass image, with the camera at eye level, by
   looking into the magnifier at the back of the reflex hood.
   The image is seen upside down, however. lt is useful on
   those occasions where you want to focus over the heads of
   people or other bbstruction which would prevent focusing
    in the normal camera position.
    PARALLAX COMPENSATION. The boundarles of the
    picture at top and bottom of the screen are adjusted by two
   masking strips below the ground glass. These move auto-
    matically as the focusing knob is turned and compensate
   for the framing error due to the different positions of the
   viewing and taking lenses.
    The frame finder, however, is not compensated and the
    line of sight through it is a good deal farther from the taking
   lens than is the viewing lens-the greater the difference
   between the viewpoints the greater the parallax error.
      Parallax varies with the subject distance.  lt hardly counts
   when viewing and taking something at a reasonable distance,
   as the difference of viewpoint is negligible compared with
   the distance between the camera and subject. But if we    '   photograph anything at close quarters-a portrait, for
   example-the parallax error may be important. The image
    as seen through the frame finder may include all of, say, a hat
   worn by the subject of your portrait, while guite a portion
    of it may be cut off on the negative.
    The easiest way to get round this is not to use the frame
    finder at close quarters. But if you do use it, make allow.
20 ances by arranging the subject rather too low in the frame
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Page 22 · Read text
I
I       finder. The distance between the centres of the taking lens
       and finder (i.e. the difference in viewpoints)  is about 4 in. So
           if you include in the finder 4 in. more of the top of the
       subject than you actually want, then the picture will be
       correctly framed on the negative.

     Focusing
      The second purpose of the reflex finder-obtaining the
      best possible definition-is  at the same time one of the most
     important means of ensuring good results.
      The less experienced user of the reflex screen is apt to
      accept, all too hastily, a seemingly sharp impression of the         ,.
                                                                                                                                                                                   '-,     image for satisfactory definition. There are, however, I
      different degrees of sharpness and we can make use of these
     very differences to find the best possible setting.
       Turn the focusing knob to and fro while observing how the
     main object to be focused becomes more and more sharp up
     to a point beyond which it will again lose definition.
      At this "beyond" stage reverse the movement of 'the
      focusing knob.' Slowly n-arrow down the degree of to and
     fro movement of the focusing knob until you unmistakably
      arrive at the point of thd very best definition. Before or
     beyond the point of maximum definition the image still
     appears sufficiently sharp, but do not be deceived by this
     fact-the image is not good enough for enlarging.
       Swing the built-in magnifying glass into position and thii
      will help to check critical sharpness. In fact, you should use
     the magnifier while focusing, and with practice you should
     be able to bring the image to exact focus with the minimum
     twiddling of the focusing knob. Once the focus is set on the
     Microcord  l, fold the magnifier back to survey the whole of
    the screen before making the exposure, while with the
     Microcord ll, you can view the entire image through the
      magnifier, so there is no need to fof d it back.
      The camera is best raised near to the eye when using the
      magnifier; and when you have finished with it, it is best 21
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Page 24 · Read text
EYE-LEVEL VIEWING





                                               open-  - Opening, using and closing the eye-level  frame finder of the Microcord  ll.





                        tttt"t"tttttt-t"2
                           ttttt_

_-----





 The open-frame finder of  the
  Model ll has a parallax error.
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Page 25 · Read text
a         folded out of the way so that )tou can see the picture as
        whole on the screen.
         The frame finder cannot be used for focusing. Generally
         the best way is to use first the reflex finder for focusing and
         then to change over to the frame  fi nder for viewing. But for
          rnoving subjects, for which the frame finder is best suited,
         the zone focusing method (prgu 30) is more effective. This
         ensures that all subjects within a certain depth of field will be
         recorded sharply by setting the camera to the necessary
        distance. lt is almost impossible to catch and shoot fast
         action when you are looking down at the screen; and the
          fact that image moves in the opposite direction to the
         subject makes it even more difficult. But with the frame
          finder it is quite eas), to follow eveD/thing and keep the dis-
        engaged eye on the subject before it comes into the field of
        the finder. The eye-level reflex finder of the Microcord   I
         permits focusing as described on page 23.

      Depth of Field
        When we take a picture we focus the lens at some definite
         distance. This means that its position relative to the film is
         adjusted in such a way that whatever is exactly at the
         focused distance will give a sharp image on the film. Every-
         thing else-ever)'thint nearer to the camera or farther from
           !       "-'   it-will be, strictly speaking, unsharp.      i'            ln practice the decline of definition is, of course, gradual.      li        Thus there is a zone-stretching from somewhere in front of
              I     the focused distance to somewhere behind it-within which
          i     the image will appear sufticiently sharp to the eye. This is
       the depth of field.
            't   ,      The sharpness appearance  is of course judged on the print,
         so your standard varies according to whether you are look-        ;;,          ll      ing at contact prints or big enlargements. Certain standards,
      :.    however, have been agreed upon. Usually a pin-point repre-
.         !.'                 - sented on a 2| xz]o in. negative by a dot of not more than
           i     3/1000 in. (0.075 mm.) in diameter, is regarded as sharp. The
    24 technical term for that dot is "circle of confusion."
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Page 26 · Read text
DEPTH OF FIELD





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              The larger the aperture and the
              nearer the subject, the shallower
           the depth of field. With the
            camera set to 9 ft. and f 5.6, the
              indicator shows that the depth
            extends from about 7 ft. 6 in.
            to ll  ft.





            The smaller the aPerture and
           the farther the subiect, the
               sreater the depth of field. With
             ihe camera set to 30 ft. and f  I l,
           the depth extends from about
                l3 ft. to infinity.
View original page 26
Page 27 · Read text
Control of Depth of Field
     Depth of field depends upon the focal length of the lens
    and the aperture at which it is used. lt is also more extensive
    for distant subjects than for close subjects.
     The Microcord lens is not interchangeable, so the question
     of depth varying with change of focal length does not concern
   us. But the effect of aperture and subject distances can be
    seen in the tables on pages 28129.
      Let us assu me we are working at f 5.6 and have set the lens
   to 9 ft. In the horizontal column for f 5.6, above the bold
    distance figure 9, we find 7-6 and below  I l-3-i.e. the range
    of sharp focus stretches from 7 ft.6 in. to || ft. 3 in. Wiah
    the   f ens set to the same distance of 9 ft., but with an aperture
     of f 3.5, the range of sharpness is only from 8 ft. to l0 ft. 3 in.;
    while an aperture of f 8 will take in a sharp zone from 7 ft.
   to 12 ft. 9 in. (Similarly with the metric tables: e.g. with the
    camera focused on 2 m., the depth of field atf I extends from
     1.65 to 2.54 m.)
     Note how we can vary the zone of sharpness by simply
    altering the aperture, without changing the setting of ihe
    distance: the smaller the aperture the greater the depth of
    field. So the aperture is one of the variables by which we
    can obtain a convenient zone of sharpness.
     The other one is, of course, the distance setting. Let us
   compare the depth values at, say, f 5.6, for distances 9 ft.,   and 30 ft. We see (page 28) that in the first case the depth of
     field stretches from 7 ft.6 in. to  | | ft. 3 in., and in the second
    case from l8 ft. to 90 ft. So the depth of field increases at
    distances farther and farther away from the camera.
       Incidentally, the depth of field in front of the focused
    distance is always more limited than the depth behind  it.
   With the lens set at 9 ft. we get I ft. 6 in. depth in front of
   the focused distance, and 2 ft. 3 in. behind it. At 30 ft. we
   get 12 ft. ln front and 60 ft. in the rear.
    The comparativel)' shallow depth of field in front of the
   focused distance may not be enough-e.g. in landscape
   photography the subject might have to include much fore-
26 ground. A way out is to set the lens to a nearer distance
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Page 28 · Read text
than the main point of interest and therefore gain additlonal
sharpness towards the foreground. At the same time we
cover the main subject by the depth of field behind the
focused distance.
 When a lens is focused on such a distance that the depth
of field just reaches the far distance (infinity), then the lens is
focused on the hyperfocal distance. This setting of the focus
is useful when a shot is to be adequately sharp from the
farthest distance to as near as possible in the foreground,
rather than extremely sharp in the far distance only (see
table below). When maximum sharpness in the distance
ls necessary/, setting the lens at infinity will give better
res u lts.
Hyperfocal Distance and Depth of Field Tables
  The hyperfocal distance tables give the lens settings for the greatest
posslble depth of field from infinity to the foreground.
   ln the depth offield tables (see pages 28 to 29), the figures on the left
of each group relate to the setting of the lens stop.
  The bold (middle figures in each group indicate the distance in feet
or metres to which the lens has to be set on the focusing mount.
  The corresponding figures above them give the distance of the near
limit (in feet and inches or metres) of the depth of field.
  The figure below gives the distance of the far limit (in feet and inches
or metres) of the depth of field.

                   HYPERFOCAT D'STANCES
                         for 2!x2f in. Microcord
    Aperture           Setting oflens         Depth of Field from a  to
            f.              ft.            m.             ft.          m.
        3.5         72             2t.5           36                     I t.2
      4          62              t8.8            3l              9.4
        5.6         45               r3.4         22*            6.7
      8             3l               9.4           ts*            4.7
        tl           23               6.8            il*             3.4
       t6            ts*              4.7           7t            2.3
     22           il*              3.4           st               4.7                                                 27
View original page 28
Page 31 · Read text
Zone Focusing                                                                                        :
    There are opportunities in a photographer's llfe whlch,
    like time and tide, wait for no man; when to bring your
   whole technical armament to bear-reflex focusing, ex'
   posure meter and the rest-would be.to let your Prey
   bscape you for ever. Such situations are best dealt.with b)'
    applyin! a kind of pre-prepared depth focusing as follows:
       For o neor shot, set to 9 ft. and f8.      Everything between about 7 ft. to l2ft 9in. will be sharp.
       For o medium shot, set to 20 ft. and f 8.      Everything between about 12 and 57 ft. will be sharp.
                                                                             I l.       For o distont shot, set to 30 ft. and f      Everything from about 13 ft. to @ wlll be sharp.




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30
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