Horseman Optical-Bench Modular Camera User manual

OPTICAL.BENCH
MODULARCAMERA
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    OWNER'SMANUAL
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ot6*r                          1. Base
@zt-ri>>,   /J                  2. Focusing Knobs
@zt-h>>,  a'v2/)             3. Focusing Lock Knobs
@-tv-tv                         4. Monorail
@-lv-)vz_l.vri-                5.  Monorail Stopper Plate
@zt-h>>,  zr-)v              6. Focusing Scale
@xt>r-1.,"Ftr                   7. Standard Base
@z<>2 ay?vtt-                8. Lock Lever for Swing
@71>2 zr-)v                   9. Scale for Swing
@^4>r&.U2azt?lF*         10. Indicator for Swing and Lateral Shift
@uHz-^                  11. L Support
@>zt(+'F'tafi) /J            12. Knob for Lateral Shift
@>zlay? /)                  13. Lock Knob for Lateral Shift
@>zl7t-tv                   14. Scale for lateral  Shift
@=.tZ/z,r-tv(#treg)    /)    15. Knob for Rise/Fall Uertical  Shift)
@=4^,/zrr- tvtr'v?/J          16. Lock Knob for RiselFall
@=<X/z,r-tv7r-tv           17. Scale for RiselFall
@r1^, /z,r-tvtFtH            18. Indicator for Rise/Fall
@+ tvfa'v2/J                 19. Lock Knob for Tilt
@7tvfxr-tv                  20. Scale for Tilt
@rtvl.tFtH                  21. Indicator for Tilt
@i{6p                       22. Main Frame
@rffRHfr.tt                  23. Lock Knob for Main Frame
@rk€At                      24.  Spirit Level
@/(+**Fe                  25.  Spirit Level Base
@7r11:a'v2                 26.  Slide Locks
@crt$t+                     27. Supporting Frame
@zlp,tt)-++.yf               28. Accessory Holder
@e>tfi7^t+                  29. Groundglass Frame
@ez>                       30.  Spring Latch
@+FFfEE                   31. Standard Bellows
             2

trIigtffi#*.fi(t*fF      Assembling and Operating Camera


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Assembling Camera
 Fix  the camera on a tripod  or a stand as shown  in
Photograph  1. use either the larger  (3/B')  or smaller
 (r /4')  taphole on the camera base according  to the
screw diameter  of your  tripod.
The optional Quick Shoe (code No. zTsG4)mav be
used for quick mounting  to a tripod.

There are a number  of ways  of assembling the camera
as the camera may be assembled freely  to meet any
photographic requirement. The  following  is the standard
method of assembly.
(1) Release the locks  for  the swing movement on both
   the front and rear Supports (g). Turn  the L Supports
    90' . The  operating knobs  for camera movements
   should be on the  left and the swing indicator  (10)a+.        o0'   the      position. Lock  both Swing Lock  Levers to
   secure L Supports as shown  in Photograph  Z.
(2) Extend the bellows rearward  and afix   it  to the
   Main Frame on the Rear Standard by using Sride
   Locks.





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      Gamera Movements

              Tilt  Loosen the Lock Knob  for  Tilt  (19),turn  the Main
        Frame and lock   it  in position when the desired angle
             is set. Amount  of rotation  is indicated on the Scale
            for  Tilt  (20.

          Swing: Loosen the Lock  Lever  for Swing  (8), turn  the
         L support and lock   it  in position when the desired
          angle is set. Amount  of rotation  is shown on the Scale
            for Swing  (9).

           Rise/Fall:  Loosen the Lock Knob  for  Rise/Fall  (16)and
           turn  the Knob  for  Rise/Fall  0b). Amount  of movement
             is indicated  in mm on the Scale for  Rise/Fall  (tZ).

            lateral  Shift:  Loosen the Lock Knob  for  Lateral  Shift
              0il and turn the Knob  for  Lateral  Shift  (lD. Amount  of
        movement  is indicated  in mm on the Scale for  Lateral
            shift  04).





                                         5
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Variationsof Assembly
The  following  five sections explain  alternative methods
of  assembling the Horseman 450. (The Lensboard side
 is rendered  front  and the Groundglass side rear.  Left
and right  are the directions when viewed from  rear.)
1) Focnsing Knob on Left or Right of BGe.
    If you wish to have the Base's Focusing Knob on
  the opposite side from  the Focusing Knobs on the
  Standards (see Section (4)), you can simultaneously
  change magnifications  and focus with  both hands.
   In  this case, loosen the screw  of the Monorail
  Stopper Plate to detach  it, take the Base from  the
  Monorail  and reverse  it. Then reattach the Base to
  the Monorail.  This procedure  is common  to Sections
  2 and 3 below.
   In case of Expandable Monorail: Unscrew the
  Extension Locking Knob located on the bottom
  side of the monorail and remove  it. Then  slide the
  Base off the monorail,  turn base to opposite direction,
  reattach base and reinsert Locking  Knob.
2) Front and Rear, Surface and Back of Monorail.
                                           o0'  The  rear  of the Monorail  is set at       at the time
   of delivery. As the bottom  side of the Monorail  has
  no calibrations, you can write  in your own marks  or
  calibrations.  In case of Expandable Monorail: No
  upside-down use is possible.
3) Inside and Outside use of Lock Lever for Swing.
  The Lock  Levers for Swing are set to face outside
   at the time  of delivery. The  levers can face each
  other by interchanging the Standards.
4) Left and Right of L Supports.
  Turning  the L Supports  left  or  right may be easily
  done by turning  the L Support  180'. After  turning
  the L Supports, rotate  the Main Frame  (2) 180'  for
  the proper operating  position.
5) Positioning Main Frames on the L Supportrs.
   A). Standard Positioning
  Both Main Frames are positioned at the front  of
   their L Support as shown  in Photograph  (1). Only
  when the rear Main Frame  is in  its front  position
   will  the  tilt   / swing axis and the focal plane
   coincide, preventing a shift  of focus and picture
  image on the center  line  of the picture frame when
   using  tilt and swing movements.
   B). For the shortest Flange Back Distance  of 6Omm
  While maintaining  the front  offset  of the rear Main
  Frame, rotate  the front  Main Frame  180' . The front
  Main Frame  is positioned at the rear  of the front  L
  Support so that  the front and rear Main Frames
  come to  their closest position. In  this case, the
   flange-focal distance is the minimum  of 60mm,and a
  65mmlens may be used on a  flat  lensboard, without
   using a special recessed lensboard, though a
  wideangle bellows should be used.
   C). For the Longest Flange Focal Distance
  Maximum  bellows extension  is achieved by setting
   the front Main Frame  at  its front  position and the
   rear Main Frame  at  its rear  position.
   8

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 All  the photos in this owner's manual show the
Horseman 4  x  5 camera system, but the manual  is
 also common to the SxT and 8  x  10 systems. The
expandable monorail  is used for the 4  x  5 EM, 5  x  7
and 8  x  10 cameras, and is expandable from 460mmto
700mm.

Special Instruction for the use
of the Expandable Monorail
 l).Quick focusing may be accomplished by releasing
                                                   of                                 the bottom                         on             knob located       locking   the                                                the                          /=                                                 portion                                     the upper                                sliding              monorail                     and  expandable
  forward  or backward  manually as desired. After  the
  approximate location has been found, be sure to
   tighten the lower locking knob.
                                                                  w                                   w
 2).Fine focusing may be accomplished by using th'
   rack and pinion focusing knobs Q).





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                          www.butkus.us

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Interchangirls and Detaching           and Fresnel Lens


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 If the Fresnel Lens is included with  the 4 x 5" camera
 it  is fixed  in front  of the Groundglass (to the side of                                                  t>lz?"1z
the lens). Follow  the procedures below when                                                       Groundglass
interchanging  Groundglass and Fresnel Lens or                                       ftrtr   Mat surface
detaching the Fresnel Lens.                                                                                            iA E   Grooved+    surfaceDetaching
                                                                                                                         7v  ),tvv>t'
Loosen the six screws to detach the Groundglass                                                                 Fresnel  Lens
 Latches  (A). The Groundglass and the Fresnel Lens
 are separated by detaching  the upper and lower  Frenel
Lens Latches (B). Be sure not  to lose the Spacers (C).

Attaching                                                                          VYfrt- rA++   Groundglass Frame
1) Attaching Fresnel Lens
  Have the grooved surface of the Fresnel Lens facing
  the mat  surf ace of the Groundglass (the letters  of
  .HORSEMAN"                 on the Fresnel Lens are viewed                        iBEi  Smooth surface
  correctly  through  the Groundglass) and attach   it  with                                                                                           t > llt'12
  the Fresnel Lens Latches. Place the Spacers correctly                                           Groundglass
  on the Groundglass Frame and lay the Groundglass
  and Fresnel Lens assembly on   it, with  the Groundglass
  on the upper side. Fix  the Groundglass Latches with
  the six screws (the Groundglass may be broken   if the                                                            I  screws are fastened too  tightly.
2) Attaching Groundglass  without Fresnel Lens.
  With  the smooth surface facing  out, place the
  Groundglass on the Groundglass Frame  without
  using the Spacers (C) and  fix   it  in place with  the                  $r\rt"7At+   GroundglhsSFrame
  Groundglass Latches  (A).
                                   11
                           www.butkus.us

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Adjustment of Focusing Torque
 Adjust focusing torque by rotating  the three hexagonal
 bolts on the knob side of the standard base (7) (see
 diagram) using the hexagonal wrench.
 X Do not loosen the bolts too much, as the L-support
 could then move even when the focusing lock  is applied.
Adjustment of Groundglass Back Spring Arm Torque
 Place the ground glass back as shown in the diagram
 and then  fit  the hexagonal wrench over the hexagonal
 bolt on the spring plate.
 Rotate the wrench a  little  to the right  or  left  to
 increase or decrease the torque  of the spring.
 X Do not loosen the hexagonal bolt too much, as the
 ground glass back could be displaced slightly when a
 reflex  viewer  or other accessory is attached.
 lmportant
 1 Be sure to release the appropriate  lock before operating
  each camera movement. Forced operation in the locked
   position ma)' damage the driving and locking mechanisms.
2 Refrain from  disassembly beyond the limits  of assembly
  and disassembly of each module as  described in the
   instructions.
3 Refrain from  using organic solvents such as lacquer
   thinner and acetone in cleansing Knobs and Fresnel
   Lens, because they are made of molded resins which
   are easily damaged. Use only a mild soap and soft  cloth.
4 In cleansing the mat surface of the Groundglass, wipe
   gently with a soft cloth wet with a small amount of
   alcohol. Do not use water  or blow on the groundglass.
   12