I try to use DNG-files from a Ricoh GR III with darktable 2.6.3~git2.22c690a53 (from OBS) and Ubuntu 19.10
GR III-lens is not recognized automatically, but the camera itself is. After discussing this in the lensfun-maillinglist it could be that is not very much related to lensfun, but maybe to Ubuntu or darktable. The problem with Ubuntu is, that exiv2 is very old with this distro. Even the coming Ubuntu 20.04 uses the very old exiv2 0.25, while 0.26 is needed at least for a manual lens id configuration, although it looks like that this camera has no lens id using exiv2 0.27.2 This exiv2-problem exists for about 2 years now and will exist 2 more years with Ubuntu. So there are 4 years for some new lenses to wait. As said, it could be, that with this camera there is no eviv2-problem, but for sure with other new dslr-lenses. Is there a way, that darktable uses exiftool instead of exiv2? The decision is hard, but I don't want to change the distri to get a newer exiv2 and compiling looks to be not so easy (glib2). So I am posting the problem with the Ricoh GR III in this list too. Maybe someone can help. My lens-configuration is based on this post: https://github.com/lensfun/lensfun/issues/895 I have put the configuration file in ~/.local/share/lensfun All the variations I tried, worked manually, but not automatically. This is my latest trial: ------------------------------------------------------------- <!DOCTYPE lensdatabase SYSTEM "lensfun-database.dtd"> <lensdatabase version="1"> <camera> <maker>RICOH IMAGING COMPANY, LTD.</maker> <model>RICOH GR III</model> <mount>RICOHGR3</mount> <cropfactor>1.53</cropfactor> </camera> <lens> <maker>RICOH IMAGING COMPANY, LTD.</maker> <model>RICOH GR III</model> <model lang="en">GR Lens</model> <mount>RICOHGR3</mount> <cropfactor>1.53</cropfactor> <calibration> <distortion model="ptlens" focal="18.3" a="0.013" b="-0.035" c="0.018" /> <tca model="poly3" focal="18.3" vr="1.0002833" vb="0.9999384" /> <vignetting model="pa" focal="18.3" aperture="2.8" distance="10" k1="-1.3802520" k2="0.8435439" k3="-0.2049726" /> ... <vignetting model="pa" focal="18.3" aperture="16.0" distance="1000" k1="-1.3150808" k2="0.7466026" k3="-0.1380186" /> </calibration> </lens> </lensdatabase> ------------------------------------------------------------- In other words this means, I have to choose the lens every time manually, while the camera is recognized automatically. Al ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to [email protected]
