Ho nice !
Thanks a lot for your help.
If I can help please let me know.
Marc
Le 06/12/2017 à 11:12, Jean-Luc Coulon (f5ibh) a écrit :
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 <mailto: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
<mailto: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
<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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