Foth-Derby Camera User manual

DIRECTIONS
FOR USING

T H E
FOTHIDERBY-
    CAMERA





 E O U I P F E D W I T H :
FOCAL PLANE SHUTTER
               TO 1/SOOSECOND
ANASTIGMAT LENS  f :3'5
           oR l:2'5
AND
AUTOMATICSELFTIMER



                                       P r i n t e d i n G e r m a n Y

To our friends
    who areaboutto usethe FOTH-DERBY-
    Camerafor the first time: This camera
     has been built with  great care, and
     every precaution has been taken that
          it operateperfectly and with the min-
    imum of effort on your part.  Its parts
          f it accuratelyand we ask merely that
     you use reasonablecare and follow
      closelythe INSTRUCTIONS in opera-
      tion.  Do not lorce any part. .  If has
     beendesignedto work properly without
      force.  You have here an instrument
     capable of making excellent pictures;
     the rest is up to you.
                                                                                                                                                                                                           t

                                                                                                                                                                                                            I
                                                                                                                                                                                                           I     First:
                                                                                    {       Familiarizeyourself with the camera
    and its parts before loading. Refer to
     the illustration,Iook at the parts marked
     there, and  f ind them on the camera.
    Go over the instructionsand work the
     variousparts; then put in the first roll
    and use the camera.
    Loading:
      Push knob (A) on end of camera in2    direction of arrow and open hinged


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back.  Tear off completely the strip of
pip.r  holding t!-1efoll  of   f ilm  closed.
tfr'e end of tutl film spool is inserted in
left hand bearing anO the other end
pressed in the hook-$uped bearing- on
ttre opposite side.  The paper is then





                             3

note that there are two sets of windows
in the back of pressureplate, operated
by a slide;if Panchromaticfilm is being
used, the green set  is pushed into
position; for Orthochromatic,the red
set is used. For the first exposure,the
number I  is wound into positionin the
center of  first window, the exposure
made, and the number I then wound
to secondwindow for secondexposure;
number 2 is wound to first window for
third  exposure, etc.   After the  l6th
exposure,wind the film until the end
of paper passessecondwindow. Open
the camera,hold the end of paper with
the right hand,free the spoolfrom hook-
shaped fitting with  left hand, remove
spool and fasten paper with gummed
strip.    It  will help the darkroom man
if the paperis folded oncebeforeputting
the gummedstrip across.

Focusing:
  The front panelof the FOTH-DERBY.
which servesas a lens board, is brought
out into positionby graspingthe flaps,
(C) one on each side, and pulling until
the struts go into position with a snap.
The focusingknob (D) is now turned to


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the left until the pointer is towards@ on
the scale,which focusesthe camerafor
all distancesbeyond66 feet. For focusing
at closerranges,turn the focusingknob
(D) to the right until the arrow points
to the desireddistance. The closerthe
focusing,the greaterwill be the accuracy
required in judging the distance and
setting the scale.  It  is recommended
that the distancebe measuredfor using
the cameraat five feet or closer.
                                                                 I
Diaphragm:           Q'
  This  is  adjustable from  t:2.5  or
 f :3.5 to f :18. Settingis doneby turning
the front lens barrel, on the side of
which will be found an engraved'line,
and setting this oppositethe "stop" or
aperturedesired,as found on the -ring
-photographersiust outside the lens barrel.  Most            know from  experience
what diaphragm and shutter speed to
 use, accordingto  light conditions,et.c.
 For shots under average conditions in
good daylight, for example,an exposure
    l/uo       second at  f:9  might be ttsed, of
 where, in stopping motion, an exposure    t/uoo       secondat  f :3.5 ot f:2.5 might of
 be chosen,etc.

Shutter:
  The FOTH-DERBY is equippedwith
 a focal plane shutter. The knob (F) is
 engravedwith the speeds 25, 50, 75,
 100, 200, 500, and "8"  for short'time
 exposures.To set for any speed,lift the
 outer ring of the knob (F), and turn
 until. the point in front of the figure
 coincideswith the point on the axls of
the knob, and let it down. In winding,
turn the knob to  the right  until a
resistanceis felt. Releaseoi "exposure"
 is accomplishedby pressingbuttbn (G),
or by cable releasethrough the front
to (H).  The FOTH-DERBY is fitted
with  an  automatic Delayed-operatorAction
Release,which enablesthe          to
includehimselfin the pictureby allowing
this releaseto set the shutter'off. ThE
lever ( I) with the red dot is moved to
the right until it catches,the shutter is
wound, and release is' accomplished
about ten secondsalter the cdtch is
p.ressed.on (K). For exposuresof longer      Lfthan   ,u secondthe camera should-be
mountedon a tripod or set on a solid
gbje_ctto precludepossibilityof motion
in the cameraduring exposirre.



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View Finder:
      This camerais fitted with a tube or
    "telescope"type' of view finder which
    gives a' sharf, brilliant image.  The
    iinder is lifted up from the camera in
    use,the eye being held closeto the eye
    piece'      in back ( l).                 1"4, ,f t                    t4ltft*g                             - 'd-'{,   Closing Camera:
     The camerais closedby graspingthe
    flaps (C) with the thumb and fore-finger
:F   anit pustring toward the camera b-ody.it,   The iocusin-gknob (D) is turned back
     to infinity, lnd  the view finder folded
    up againstthe cameracase.

   Accessories,
    such as carrying cases, filters, flash
    svnchronizers,-etc.are obtainablefrom
    your dealeron request.