Hi, I've reported a bug for this problem to exiv2. See: http://dev.exiv2.org/issues/1328
Regards Jean-Luc 2017-12-05 22:12 GMT+01:00 Jean-Luc Coulon (f5ibh) < jean.luc.cou...@gmail.com>: > Well, with exiftool, I get : > Lens Type : Canon EF 75-300mm f/4-5.6 IS USM or > Sigma Lens > ... > ... > Lens Info : 18-300mm f/0 > Lens Model : 18-300mm > Lens Serial Number : 0000000000 > Lens : 18.0 - 300.0 mm > Lens ID : Sigma 18-300mm f/3.5-6.3 DC Macro OS HS > Lens : 18.0 - 300.0 mm (35 mm equivalent: 28.0 > - 466.3 mm) > > which seems to be correct... > > with exiv2 : > Exif.CanonCs.LensType Short 1 Canon EF > 75-300mm f/4-5.6 IS USM > Exif.CanonCs.Lens Short 3 18.0 - 300.0 > mm > Exif.Canon.LensModel Ascii 74 18-300mm > Exif.Photo.LensSpecification Rational 4 18/1 300/1 > 0/1 0/1 > Exif.Photo.LensModel Ascii 9 18-300mm > Exif.Photo.LensSerialNumber Ascii 11 0000000000 > > which is confusing because the Type is only on the Canon, not "or Sigma" > but other lens data are related to the Sigma. > > In darktable, it is wrong also because it is the LensType which is > reported. > > My version of darktable is the latest git/trunk version > > Jean-Luc > > > 2017-12-05 20:40 GMT+01:00 Marc Mascré <li...@mascre.fr>: > >> I don't know. >> >> To confirm that the problem come from the file and not my system, if you >> whant, you can download the file here : >> http://documents.mascre.fr/IMG_4575.CR2 >> It could be take some time, it is self hosted. >> >> >> >> Le 05/12/2017 à 08:49, Jean-Luc Coulon (f5ibh) a écrit : >> >> It seems that some informations are from the right lens and other for the >> wrong one. >> Probably these informations ARE in the file. >> Maybe Sigma is trying to fool the Canon body to get some optical >> corrections from it? >> >> 2017-12-04 22:43 GMT+01:00 Marc Mascré <li...@mascre.fr>: >> >>> That is completely crazy >>> >>> # exiv2 -pt IMG_4575.CR2 | grep Lens >>> Exif.CanonCs.LensType Short 1 Canon EF >>> 75-300mm f/4-5.6 IS USM >>> Exif.CanonCs.Lens Short 3 18.0 - >>> 300.0 mm >>> Exif.Canon.LensModel Ascii 74 18-300mm >>> Exif.Photo.LensSpecification Rational 4 18/1 300/1 >>> 0/1 0/1 >>> Exif.Photo.LensModel Ascii 9 18-300mm >>> Exif.Photo.LensSerialNumber Ascii 11 0000000000 >>> >>> exiftool version here is 10.45 I can try to update it but I became to >>> ask myself if the wrong lens type is not write in the .CR2 by the camera. >>> >>> Marc >>> >>> >>> >>> Le 04/12/2017 à 16:36, Jean-Luc Coulon (f5ibh) a écrit : >>> >>> Can you try: >>> >>> exiv2 -pt IMG_xxxx.cr2 | grep Lens >>> >>> I got that on an other lens: >>> >>> Exif.CanonCs.LensType Short 1 Canon EF >>> 24-70mm f/4L IS USM >>> Exif.CanonCs.Lens Short 3 24.0 - 70.0 >>> mm >>> Exif.Canon.LensModel Ascii 70 EF24-70mm >>> f/4L IS USM >>> >>> Maybe you can try also to update your exiftool-version (I've 10.67 here) >>> >>> Jean-Luc >>> >>> 2017-12-04 0:29 GMT+01:00 Marc Mascré <li...@mascre.fr>: >>> >>>> Hi >>>> >>>> It seem to be exactly this model for my lens. But when I use exiftool >>>> on a .CR2 file from my camera, it detect my lens as a canon EF 75-300 too. >>>> (see file attached) >>>> >>>> How can I find the right exit informations ? >>>> >>>> Marc >>>> >>>> >>>> >>>> Le 03/12/2017 à 18:24, Jean-Luc Coulon (f5ibh) a écrit : >>>> >>>> Hi, >>>> What is the exact model of your lens (from the exif)? >>>> Is it: "Sigma DT 18-300mm f/3.5-6.3 DC Macro" ? >>>> >>>> If yes, it is not in version_1 of lensfun database but it is in >>>> version_2. >>>> >>>> If you upgrade your database with the command "lensfun-update", it will >>>> create the following in your home directory: .local/share/lensfun/updates/v >>>> ersion_1/ >>>> And then the lens will be in the file: slr-sigma.xml >>>> >>>> Jean-Luc >>>> >>>> >>>> 2017-12-03 18:07 GMT+01:00 Marc Mascré <li...@mascre.fr>: >>>> >>>>> Hello >>>>> >>>>> I have a lens, the sigma 18-300 f3.5-6.3 >>>>> >>>>> The problem is, it is detect by darktable as a canon EF 75-300 >>>>> >>>>> I see the link for raw.pixls.us but it seem to be only for camera, >>>>> not for lens. >>>>> >>>>> >>>>> How I can tell to darktable that my lens is a sigma 18-300 and not a >>>>> canon 75-300 ? >>>>> >>>>> >>>>> Thanks >>>>> >>>>> >>>>> Marc >>>>> >>>>> ___________________________________________________________________________ >>>>> darktable developer mailing list to unsubscribe send a mail to >>>>> darktable-dev+unsubscr...@lists.darktable.org >>>>> >>>> >>>> >>>> ___________________________________________________________________________ >>>> darktable developer mailing list to unsubscribe send a mail to >>>> darktable-dev+unsubscr...@lists.darktable.org >>>> >>>> >>>> >>> >>> ___________________________________________________________________________ >>> darktable developer mailing list to unsubscribe send a mail to >>> darktable-dev+unsubscr...@lists.darktable.org >>> >>> >>> >>> ___________________________________________________________________________ >>> darktable developer mailing list to unsubscribe send a mail to >>> darktable-dev+unsubscr...@lists.darktable.org >>> >> >> >> ___________________________________________________________________________ >> darktable developer mailing list to unsubscribe send a mail to >> darktable-dev+unsubscr...@lists.darktable.org >> >> >> >> ___________________________________________________________________________ >> darktable developer mailing list to unsubscribe send a mail to >> darktable-dev+unsubscr...@lists.darktable.org >> > > ___________________________________________________________________________ darktable developer mailing list to unsubscribe send a mail to darktable-dev+unsubscr...@lists.darktable.org
