MARC21       007g'07  Dimensions
     Values: 
             Film
             a   Standard 8 mm.
              a   Standard 8 mm.
              b   Super 8 mm./single 8 mm.
              c   9.5 mm.
              d   16 mm.
              e   28 mm.
              f   35 mm.
              g   70 mm.
                  Slides
              j   2x2 in. or 5x5 cm.
              k   2 1/4 x 2 1/4 in. or 6x6 cm.
                  Transparencies
              s   4x5 in. or 10x13 cm.
              t   5x7 in. or 13x18 cm.
              u   Unknown
              v   8x10 in. or 21x26 cm.
              w   9x9 in. or 23x23 cm.
              x   10x10 in. or 26x26 cm.
              y   7x7 in. or 18x18 cm.
              z   Other