lens correction profile for fujifilm 16mm f2.8 for darktable

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1

Hi all,
Is there a lensprofile of the fujifilm 16mm f2.8 for Darktable already available?
Greetings

2

Check the lensfun database on https://lensfun.github.io/

if it is not supported, create a correction profile yourself:

2 Likes
3

I do not have the lens yet. Was just curious a correction profile was already made.

4

Yes, it has been made, although I update regularly lensfun (from terminal with lensfun-update-data). So if it does not come with your distro default package, just run the ā€œterminalā€ update.

5

I only see the profile for the 16mm f1.4. I mean the new fujifilm 16mm f2.8 R WR lens.

6

Hi @RMA, I already have the vignetting and distortion calibration for
the new XF 16mm (lensfun/mil-fujifilm.xml at master Ā· t3mujin/lensfun Ā· GitHub), but havenā€™t did the pull request into lensfun project yet because I still havenā€™t done the TCA correction.

7

Often you can just use the distortion pictures for it. Did you try it to generate them and check if it works?

8

I just corrected the title. Put for instead of dor and darktable instead of Darktable. Hope itā€™s okay.

1 Like
9

The new 16mm f2.8 is in delivery for comming weekend. So i hope to see a lensfun update soon. Many many thanks upfrontā€‹:+1::+1::+1:

10

You are right, I miss-checked the thing, you are right

11

Actually I didnā€™t, but since my distortion images werenā€™t ā€œcontrastyā€ at all I didnā€™t even tried. Iā€™d rather have good samples. Itā€™s just a matter of getting a good sample and running the scripts, but I havenā€™t been able to that simple thing for the last couple of weeks :slight_smile:

12

Yesterday I received the lens. I can send you some RAF files. I do not know how to use a script. In Darktable the 16mm f2.8 is recognised as the wide end of the 16mm to 55mm zoomšŸ˜Š
Let me know what you mean with contrasty photo. Greetings.

13

Thanks, but thereā€™s no need, Iā€™ve had the lens since it came out and right now I may even already have some good enough samples in my archive :D, so Iā€™ll take care of that soon and run the script to submit the pull request. But even after me doing that it may take a bit before a new version gets released, so meanwhile you can replace the mil-fujifilm.xml in file in your lensfun installation with the one with my changes (lensfun/mil-fujifilm.xml at master Ā· t3mujin/lensfun Ā· GitHub), it already includes the distortion and vignetting corrections for the 16mm f2.8. My updated file has been the one Iā€™ve been using in darktable for the last weeks.

1 Like
14

Many thanks for your reaction. So I do have to replace the xml file. Lensfun on my Manjaro linux systeem sits in usr/share/lensfun. So i have to replace there the xml.file and restart?
Do i have to have a account to get the xml file from Github. I donā€™t see any download link after activating your link.
Hope to hear from you.
Greetings

15

Hi Joao,
Did found the directory of lensfun-updates on my system. Was in /VAR/LIB ā€¦
I did change the xml file with your extra code.
Now it functions.
Darktable detects the 16mm f2.8 r wr lens.
Big barrel distortion compensation when taken a object short to the lens.
Greetings

1 Like
16

Sorry, but Iā€™ve away from the computer in the last couple of days. Glad you found your way to change the database :slight_smile: