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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
1

ld_bl wrote:

I've played around a bit with exifTool over the weekend and I found that changing the focal length alone is not enough. There is "Geometric Distortion Params" embedded in the exif of the Fuji raw file. I was thinking of overwriting that field with data from a normal Fuji X100T file but apparently you can't write to that field. Maybe you just can't write to the whole field because it's made of multiple floating point numbers (probably coefficients of a polynom to describe the distortion correction) but I can't figure out how to get/set the single numbers either...

So, I'm kind of stuck. Might have another look at a later date.

I would have thought there's an easier way to fix this as it seems like a pretty easy mistake to make...

The Geometric Distortion Params are actually embedded in the raw data whereas most other EXIF metadata (like the focal length) is stored in the preview jpg - I'm guessing exiftool doesn't like to mess with the raw data.

Here is your sample with the params updated - see if it does what you want - I see there are other parameters that control chromatic aberration and vignetting corrections but I didn't touch those:

https://www.dropbox.com/s/4trht3qonm9j5q1/X100Tz.RAF?dl=0

 Greybeard2017's gear list:Greybeard2017's gear list
Fujifilm X-T30 Fujifilm X-S10 Fujifilm X-H2S
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