cam_aperture       80 modules/dng.c  static int cam_aperture[2]              = { 0, 10 };            // Aperture
cam_aperture      230 modules/dng.c      {0x829D, T_RATIONAL,   1,  (int)cam_aperture},         // Aperture
cam_aperture      756 modules/dng.c      cam_aperture[0]      = pow_calc( 10, 2, 1, short_prop_val, 192);