[digiKam-users] Canon RF 70-200/2.8L IS USM

[Maik Qualmann]

Thanks for the additional Canon image samples. They coincide with my samples.
I decided to recognize this lens specifically, since the Makernotes lens strings
differ from Exif.Photo.LensModel in terms of formatting and in order to
recognize other lenses no worse.

https://invent.kde.org/graphics/digikam/-/commit/780e7cc7dd33a909f223ffd00c0000f1a89489dd

Maik

Am Dienstag, 14. Februar 2023, 20:19:21 CET schrieben Sie:
> This patch fixes it for your Canon lens model. For now only for
> digiKam-8.0.0, should further tests with other Canon camera/lens
> combinations not cause any problems, I will port it back to digiKam-7.10.0.
> 
> https://invent.kde.org/graphics/digikam/-/commit/e9e88d86e8cf68f40f23a31db37
> a23fdf668da49
> 
> Maik
> 
> Am Montag, 13. Februar 2023, 13:12:22 CET schrieb Alberto Ponti:
> > Hi Maik
> > I am the one to thank for the work you developers do on Digikam.
> > The camera firmware is updated to the latest version (1.3.0) the lens
> > firmware (1.1.0) is updated in November. I didn't do the December update
> > because it only adds the focus breathing which I don't need.
> > 
> > best regards
> > Alberto
> > 
> > In data domenica, 12 febbraio 2023 21:42:32 CET, hai scritto:
> > > Thanks for the test image. That's strange. The lens information is
> > > different in the Exif and Makernotes.
> > > In the Makernotes CanonCs, digiKam finds the wrong type with F4. But it
> > > gets even better, ExifTool even recognizes a completely different lens
> > > in
> > > the Makernotes: "LensType : Canon RF 50mm F1.2L USM or other Canon RF
> > > Lens. Is the firmware of your camera and/or lens up to date?
> > > We can change the order of metadata when detecting the lens for Canon.
> > > I'll
> > > have to check the bug report, I think we've had a similar problem
> > > before.
> > > 
> > > Maik
> > > 
> > > Am Sonntag, 12. Februar 2023, 11:56:13 CET schrieb Alberto Ponti:
> > > > In data domenica, 12 febbraio 2023 11:52:31 CET, Maik Qualmann ha scritto:
> > > > > Which digiKam version are you using exactly? I downloaded a sample
> > > > > image
> > > > > on
> > > > > the web with the lens and it is correctly recognized as a Canon RF
> > > > > 70-200/2.8L IS USM. The image lens correction with lensfun also
> > > > > selects
> > > > > the
> > > > > correct lens.
> > > > > 
> > > > > Maik
> > > > > 
> > > > > Am Sonntag, 12. Februar 2023, 11:10:52 CET schrieb Alberto Ponti:
> > > > > > is not correctly recognized.
> > > > > > Digikam recognize as Canon RF 70-200 mm F4L IS
> > > > > > USM
> > > > 
> > > > Digikam 7.9.0 under Manjaro