VECO Exposure Guide Reference guide

TIIE VEGO EXPOSURE GI'II'E
   Solvss the Exposrtre Problem!
         STILL CAMERAS
   First,  find the ExPosuRE   FACTOR  as directed on the title
side of the VECO;  then, refer to the reverse side  (of the VECO)
for a table showing  the correct exposure time with  any given
lens stop.   In  certain  special cases which  are noted at the bot-
tom  of the card, other factors may have  to be added to  or sub-
tracted from the EXPOSURE  FACTOR  before using the table.
  AMATEUR  MOTION PICTURE
    \_      CAMERAS
   First,  find the EXPOSURE  FACTOR  as directed on the title
side of the VECO;  then,  refer to the table below  for' o   \ the proper
lens stop to be used:
EXPOSURE     F-        EXPOSURE     F--
 FACTOR   STOP         FACTOR   STOP
           ' 2 2 2                               L4        4 . 2
      4 1 6                                                               l 6        3.5
      6         1 1                1 8        2 . 9
      8 8                        20        2.3
     10        6.5               22        1 . 9
      '     L2        5.2               24        1 . 5
  NOTE:   When  a choice is to be made,  it is a safe rule to use
a stop opening larger than indicated  rather  than  a- smaller one.
 The'lar:Eer tITe sfSp opentn€, the  smaller  fs the  "f-number".'
  The table above was made up  for the most common  condi-
tions;  that  is, a camera with  a shutter  speed of 1/35 sec. (also
known  as a i80 degree shuttpt)  r using _regular  panchromatic
reversal film and operating  at "NORMAL"    spe$-  of 16 frames
per sec.  For other conditions  as noted below, add the  factor  or
iactors which  apply,  into  the EXPOSURE  FACTOR  before us-
ing the table:                     ttsupersensitive    ;.  When  using                Pan"            Subtract 2
                                      s€c.,!::Half                                         Speed")                                                     Subtract                                                          2     When                usinfi   b.                             per'',',                                                                ',',                           !.ft.lles'.',                                                      (t,tlatt  ie                                                           1                                           Speed")                  z4                usinfi   c.  When                                                                                                     .   Add                                (3                             33                      33   d.  Whqrr usin[  +8               ("Slow-Motion")    Add 3
   €.  For  "Ray-Filter"    factors, See reverse side of VECO.
    f.    If shuttei speed (at 16 f. p. s.) is 1/50sec.        Add  I

                          Published  by
             C. G. VEINOTT  & E. P. CODLING
          27 Eureka St., Springfield,  Mass.,  fJ. S. A.
                Copyrighted,  1934, by Publishers

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