cam_max_av         83 modules/dng.c  static int cam_max_av[2]                = { 0, 96 };
cam_max_av        237 modules/dng.c      {0x9205, T_RATIONAL,   1,  (int)cam_max_av},           // MaxApertureValue
cam_max_av        759 modules/dng.c      cam_max_av[0] = short_prop_val;