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Fuji X100T - Removing conversion lens data from raw file

Started Oct 6, 2021 | Questions thread
Greybeard2017
Greybeard2017 Veteran Member • Posts: 3,112
Re: Fuji X100T - Removing conversion lens data from raw file
4

ld_bl wrote:

Thank you, that's very helpful. I wish there was a free tool that can do it...

I'm not familiar with the way that Lightroom achieves lens corrections but it would seem to use the Focal Length tag in the EXIF (there may be other profile information but I can't see it).

I tried changing the Focal Length tag from 33 to 23 in your sample file and it certainly changes the LR corrections.

If you want a free tool and don't mind using the command line then you can download Exiftool

https://exiftool.org/

The command you want is:

exiftool -FocalLength=23 DSCF1973.RAF

this will create a backup version - if you already have backups of your files you can use:

exiftool -FocalLength=23 -overwrite_original DSCF1973.RAF

this will overwrite your original without creating a backup

you can batch update all the RAF files in the current directory using:

exiftool -FocalLength=23 -overwrite_original -ext raf .

you can run the following command to check the value of Focal Length (before and after the update)

exiftool -FileName -FocalLength -ext raf -ext jpg -ext jpeg -T .

this shows File Name and Focal Length for raw and jpg files

(as usual when you are making updates its good practice to back everything up first)

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Fujifilm X-T30 Fujifilm X-S10 Fujifilm X-H2S
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