New Olympus lens profile file not loading

[Chris Stotesbury]

With the stock version of Affinity, there was no profile for my Olympus 12-45 F4 Pro.   I have downloaded the latest database from Github, installed mil-olympus.xml in the lens profile folder via Preferences and restarted Affinity.  I have confirmed that mil-olympus.xml contains a profile for my lens (it is the last one).   Despite this, opening a RAW file does not select a profile for this, and neither does it appear in the drop-down list.

I think I have followed the correct process.  What might be going on?

mil-olympus.xml

[David in Яuislip]

Very strange, I can see it using your xml file, the entry <model>OLYMPUS M.12-45mm F4.0</model> matches the second Olympus lens listed. I can't comment on auto selection though

The attached file contains only the data for your lens which might be worth a try

olympus12-45.xml

[Lars Nordberg]

The problem with this database is that the Metadata Lens name do not always match with the Lens name in the database. I have a Panasonic lens where I after a lot of trial and errors was successful after renaming the File name in the database to its full Panasonic name, despite a much shorter name in Matadata.

My suggestion is that you play around with the file name in the Lens name in the Lens Profile database.

[David in Яuislip]

1 hour ago, Lars Nordberg said:

The problem with this database is that the Metadata Lens name do not always match with the Lens name in the database.

Yep. I managed to find a raw file using this lens:

Exif
<model lang="en">Olympus M.Zuiko Digital ED 12-45mm F4.0 Pro</model>

Lensfun
<model lang="en">Olympus M.Zuiko ED 12-45mm f/4.0 Pro</model>
 

It works now

olympus12-45.xml

[Chris Stotesbury]

Thanks to both of you.   I was getting there myself, but I had been comparing the contents of tag <model> which seemed to match rather than <model lang="en">, which I had assumed to be a display value.   Cheers, Chris

[ciscrh]

I've just bought the OM-5 camera with this lens & Affinity wasn't recognising it. The metadata created in the image files uses a different lens name. So I assume that while the older lenses of this type work with the custom lens profile the newer ones don't.

I've created a modified version of David's file, which works for my lens...attached.

BTW, lensfun seem to have two XML files featuring this lens: mil-olympus.xml and another file with om in the name & just a single entry for this lens. I'm sorry to be vague, but I find it difficult to navigate the lensfun sites so although I saw & looked at the XML file last night I can't find it today. Having two XML files with slightly different entries for effectively the same lens might cause confusion.

om12-45.xml

[tuxfanx]

On 7/25/2023 at 11:48 AM, ciscrh said:

I've just bought the OM-5 camera with this lens & Affinity wasn't recognising it. The metadata created in the image files uses a different lens name. So I assume that while the older lenses of this type work with the custom lens profile the newer ones don't.

I've created a modified version of David's file, which works for my lens...attached.

BTW, lensfun seem to have two XML files featuring this lens: mil-olympus.xml and another file with om in the name & just a single entry for this lens. I'm sorry to be vague, but I find it difficult to navigate the lensfun sites so although I saw & looked at the XML file last night I can't find it today. Having two XML files with slightly different entries for effectively the same lens might cause confusion.

om12-45.xml 9.67 kB · 32 downloads

Someone has created this issue in the lensfun project and we need a raw image taken with this lens to process it. The image can be taken with the lens cap on and uploaded here. Please make a reference to issue #2376 in the comment of the upload.