Exiv2

Here is the lens id for the Pentax SMC DA 18-135mm f/3.5-5.6 ED AL [IF] DC WR :
LensID: 0x08d7

I've attached a patch to add the corresponding line into the pentax lens database that seems to work :
Exif.PentaxDng.LensType 8 215 0 0 smc PENTAX-DA 18-135mm F3.5-5.6 ED AL [IF] DC WR
Exif.PentaxDng.LensInfo 1 168 48 0 215 82 0 0 0 0 0 0 0 40 86 43 64 116 2 79 32 116 120 121 68 0 1 59 49 3 255 255 255 215 33 100 3 75 0 32 135 135 0 0 0 16 0 191 248 215 232 0 130 8 0 48 15 0 0 0 0 0 0 0 0 8 50 61 168 178 174 136 99 99 79 2 0 0 139 239 32 3 0 0 0 0 0 0 0 0 0 1 168 48 0 215 82 0 0 0 0 0 0 0 40 86 43 64 116 2 79 32 116 120 121 68 0 1 59 49 3 255 255 255 215 33 100 3 75 0 32 135 135 0 0 0 16 0 191 248 215 232 0 130 8 0 48 15 0 0 0 0 0 0 0 0 8 50 61 168 178 174 136 99 99 79 2 0 0 139 239 32 3 0 0 0 0 0 0 0 0 0