Page 5 - pm_1951_06
P. 5

THESCOPE  MOTOCAMERAS


       must  not  be  allowed  to  become  spotted  or  covered  with  dust.  It  can  be
       cleaned  by  means  of  a  damp  rag  and  dried  with  a  soft  clo\}1,, very  clean  and
       not  fluffy.
             The  following  range  of filters  is  now  available,  please  order through  your
       Pathescope  Dealer.
             THREADED  MOUNTS.      For  use  with  the  following  lenses :-H  fl.9,
       Pathe  Webo  A  fl.9,  Telephoto  lenses.  Refs.  C.900,  901,  902,  903,  904.
             CLIP  ON  MOUNTS.  For  use  with  f2.5  lenses  (H  and  Pathe  Webo  A)
       Motocameras  'B'  and  De  Luxe  (excluding  f2.5  Hermagis  lens.  Refs.  C.905,  906,
       907,908,909,298,306.
             PRICES.  Refs.  C.900/909, 21 s.  6d. each,  including  P.  Tax.  Refs.  C.298,
        C.306,  17s  lid each, including P. Tax.

                           EXPOSING  PATHESCOPE  PANCHROMATIC  FILMS
           Becomes                               Use.
      Very  light         To  give  sharper  contrasts  than  with  the  yellow  filters,  to  accentuate
                          the  image  even  more.  They  counteract  haze  at  a  greater  distance
      Very  light
                           and  we  advise  their  use  for  distance,  especially  when  a  telephoto
      Slightly  darker     lens  is  used.
      Darker
      White               To  darken  the  blue  of  the  sky,  to  intensify  the  image,  to  penetrate
                          distant  haze.  We  advise  their  use  with  a  telephoto  lens  for  long
      Very  light
                          distance  shots.
      Slightly  lighter
      Darker
      Very  light         These  filt,ers  heighten  contrasts  even  more than  the  yel!ow  or orange
                          Filters.  They  give  the  scene  filmed  during  daylight  a  night  effect.
      White
                          They  darken  blue  sky  and  water  and  penetrate  atmospheric  and
      Very  dark          aerial  haze.
      Almost  black
      Slightly  darker    To  lighten  the  green  and  yellow  and  darken  the  red  and  blue.  They
                          soften the  scene  by  toning  down  the contrasts.
      Very  dark
      Very  light
      Darker
                          This  filter  is  used  to  counteract  ultra-violet  rays  which  are  present
                          at  high  altitudes.  Using  the  correct  lens  stop  true  cloud  contrast
                          will  be rendered without  darkening  the  blue sky.

      Light  tone         Similar in  characteristics to C.906 but of less density.
      Very  light
      Slightly  lighter
      Darker
                          This  is  a  neutral  density filter,  it does  not change colour values  but is
                          used  for  reduction  of  lens  aperture  when  conditions  require  the  use
                          of  a  smaner stop than  fl4.
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