Toyo-View 45C User manual

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    CameraMovements

       When your Toyo-View is in the neutral position, it functions in the same manner as an ordinary rigid camera. In addition to a 4x5 inch large format,
         Toyo-View 45C provides all directional movements on its front standard (lens) and rear standard (film) which realizenew creation of photography.
        These movements are called rise, shifts, swings,and tilts. Using camera movements is easy to learn. Just remember following basic rules.

        RISE AND SHIFTS CONTROL THE IMAGE POSITIONING FOR IMPROVED COMPOSITION
          A. TO CONTROL IMAGE VERTICALLY, USE FRONT AND REAR STANDARDS RISE
            Photo (1) composesimage too low as the camera can not be set at right posrtron.
            Photo (2) controlled the composition by rising front standardto desired improved composition. Unlock both rise locking knobs; turn rise control
           knobs to desiredcomposition on the glass;relock the locking knobs. To control image oppose direction, use rear standard rise.
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B . T O C O N T R O L     I M A G E  L A T E R A L L Y .   U S E F R O N T A N D  R E A R
   S T A N D A R D S  S H I F T
   P h o t o  ( 3 ) : A n o b j e c t i o n p l a c e s i n  f r o n t o f s u b j e c t .
   P h o t o   ( 4 ) : R e p l a c e c a m e r a p o s i t i o n   t o    l e f t ; c o n t r o l   t h e    i m a g e  t o
    d e s i r e d c o m p o s i t i o n  b y  s h i f t i n g   r e a r s t a n d a r d   t o    l e f t    o r   f r o n t
    s t a n d a r d  t o  r i g h t . U n l o c k   t w o  s h i f t   l o c k i n g k n o b s ; s h i f t  t h e s t a n d a r d
  m a n u a l l y ;  r e l o c k  t h e   l o c k i n g k n o b s u p o n c o m p o s i n g t h r o u g h  f o c u s -
         i n g g l a s s .





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D . T O  C O N T R O L H O R I Z O N T A L L Y .  U S E R E A R S T A N D A R D
  S W I N G
   Photo (7l. Due to unparallelthe film plane and subject,horizontal
   linesconverged.
   Photo (B): Unlock the swing locking lever at rear standard;swing
   the film plane to parallelwith subject;relockthe leverupon comple-
   tion the adjustment.Swingingthe lens may be neededto refocus.





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F . T O  C O N T R O L  H O R I Z O N T A L L Y ,   U S E  F R O N T  S T A N D A R D
   S W I N G
   P h o t o  ( 1 1 ) : N o t e a n a r r o w  r a n g e o f s h a r p f o c u s i n g a s t h e p h o t o u s e s
   apertu re ef f ect on ly.
   P h o t o    i 1 2 l :  E n a b l i n g  t o  s h a r p e n  t h e e n t i r e p h o t o , u n l o c k  t h e s w i n g
          l o c k i n g    l e v e r o f   f r o n t  s t a n d a r d ; s w i n g   t h e    l e n s  t o   r i g h t s o  t h a t   t o
         i n t e r s e c t  t h e    l e n s p l a n e w i t h    t h e    i n t e r s e c t i n g p o i n t o f  s u b j e c t a n d
       f i l m  p l a n e s ; r e l o c k  t h e   l e v e r a f t e r a d j u s t m e n t . B o t h p h o t o s u s e d t h e
    s a m e a p e r t u r e o p e n r n g .
N o r m a l l y ,    t h e a b o v e b a s i c  r u l e s a r e c o m b i n e d    t o  u s e , a n d  r e f o c u s i n g
a n d / o r   r e c o m p o s i n g m a y  b e  r e q u i r e d w h e n  u s i n g  t h e m o v e m e n t s .   I n
o r d e r   t o    f u l l y  a p p l y    t h e m o v e m e n t s ,    i t    i s e s s e n t i a l t o   t a k e  c a r e  f o r
v i g n e t t i n g b y b e l l o w s o r b e l l o w s  f r a m e , a n d u s i n g a  l e n s w i t h  s u f f i c i e n t
i m a g e c i r c l e  t o  c o v e r   f u l l m o v e m e n t s . R e f e r  t h e p a r a g r a p h " C h o o s i n g
View Camera Lenses" on page 27 .
                                              20

ChoosingView CameraLenses

    Enablingto fully utilize the featuresof Toyo-View 45C, it is important      3. FLANGE FOCAL LENGTH AND FLANGE BACK
     to choose right lenses,and recommendedto choose one consideringthe                                                                      Flangefocal length (Ff) is the distancebetweenthe mounting plane
    suggentionsbelow:                                                                              o f  l e n s a n d t h e f i l mp l a n ea t  i n f i n i t y . M i n i m u m f l a n g eb a c k ( F b M i n . )
    1 . F O C A L L E N G T H                                                                         is the distance between the lensboard front surface and the film
                                                                         plane of the camera at fully collaspedbellows. A lens of its Ff is       General suggestionof focal length to choose 4x5  inch lensesis as
                                                                              shorter than the Fb Min. of the camera does not focus at infinity.        follows:
                                                                          For example,Fb Min. of Toyo-View 45C is 82 mm, so any lenswith       G e n e r a l                                  : 1 5 0 t o 2 1 0 m m
                                                                      an Ff  of shorter than this value should be mounted on No. 1129         Commercial                           :  65 to 300 mm
                                                                   Recessedlensboard or recessedadaptors which shorten the Fb Min.           Portraiture                            : 210 to 300 mm
                                                                      under 45 mm. Refer the following paragraph.          Nature & landscape             :  65 to 300 mm
           Architecture & wide angle  :  65 to  90 mm                      Maximum flange back (Fb Max.) is the distance between the lens-
         Semi wide angle                    : 120 to 150 mm                          board front surface and the film plane at fully extended bellows.
       Excellent general purpose focal lengthesfor the Toyo-View 45C are        Generally,a bellows extensionat infinity is approximately same as
      180 to 210 mm, becausethe lenseswill allow complete camera        the focal length of the lens being used (except telephoto formula
      movements and can be used for most portrait, commercial, and         lens).As the Fb Max. of Toyo-View 45C with flat lensboardis 449
       other applications.                                         mm, lenses upto 420 to 450 mm (600 mm of telephoto) may be
                                                                    usedat infinity.    2 .   I M A G E C I R C L E
                                                                   To photo 1:1 magnification,it  is required a double extension* of         ls a diameter of useableimage and illumination that produced by
                                                                             bellows of the focal length of the lens in use. For instance,with       the lens focused at infinity. To use the featuresof this camera com-
                                                                   210 mm lens, the bellows is able to draw 1:1 photo, but not with        pletely, the image circle to cover full camera movements is desirable.
                                                                   250 mm lens.             lf movements are not necessary,it should cover the negativearea at
              I east.                                                                                              * Subject to the factors i.e., the difference of actual and nominal
                                                                                    focal length, lensformula, constructionand etc.




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