Thanx everyone.
I read about darktable lens correction pipeline in the manual and i hope i get it right
evix2 reads the metadata and when the lens is know it reports it to lensfun to select the correct lens.
evix2 reports
Exif.NikonLd3.LensIDNumber Byte 1 Tamron SP 70-300mm F4-5.6 Di VC USD
or 241as LensIDNumber.
My lens is in the lensfun database
Tamron SP 70-300mm f/4-5.6 Di VC USD
But in darktable in the lenses dropdown menu the lens appears as
I do not have exiv2 installed on my windows system, so im using the one with darktable. I added an exiv2.ini file in my C:\Users\USERNAME directory containing of
[nikon]
241=Tamron SP 70-300mm f/4.0-5.6 Di VC USD (A005)
But nothing happens. I am using DT 3.0.2 release on Windows 10 (2004). Am i missing something obvious?
Edit:
I just tried the latest nightly (thanks @Quirijn ) and my lens is properly detected. So i just have to be patient it seems 