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
<mailto: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
<mailto: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/version_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
<mailto: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 <http://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
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