P: Disable built-in lens profile

The difference between the -1 and -3 image files with no distortion correction applied is very small and only visible as I outlined in my last reply. That is why there is no issue aligning them, but it is indicative that the lens zoom focal length setting was physically changed. This is also verified in the RAF file's distortion correction metadata that is different for the -3 RAF file. LR simply "reads" this metadata written to the file by the camera.

Concerning C1 showing Distortion set to 100 for some files and 0 for others is something you'll need to discuss with C1 Tech Support or in their forum. I see no settings in the file metadata that should cause that to happen.

Hi Todd,

I opened both images exported from Capture One in Photoshop and compared them by turning on and off one layer, and then setting one to 50% opacity. I see no practical difference between them. They blend fine, unlike when exported from Lightroom (with automated corrections) to Photoshop.

Those two were taken in two different steps, so it's impossible to rule out human error. The second lot I sent above, the 5 bracketed shots, were taken with one push of the shutter-release on an automated AE bracket, not touching the camera in between shots, on a solid tripod. And yet they show a difference in focal length. Number 2, which also shows as 11.5mm, shows the same distortion, most obvious in the upper left beam. Importing it into Capture One shows Distortion set at 100, whereas number 3, reading as 12mm, shows no Distortion correction.
I'm perfectly willing for the fault to lie with the camera, but it seems to be its interpretation by Lightroom that causes the problem, as it's useable from Capture One.

Which is shown by the fact that setting all lens corrections to 0 in Capture One for both images makes them align perfectly.

That is incorrect. Please reread my post and view the two C1 export files inside LR using Compare mode. The posted robertson-3.raf is slightly different with no distortion correction applied, but it's not enough to cause alignment issues inside C1.

So somehow, it (LR) seems to misinterpret the information.

LR is reading the camera distortion information correctly, but it's different in the robertson-3.raf so LR applies different distortion correction. You can't fault LR for reading different settings and properly applying the distortion correction. The fault lies with your camera–Denying that will not make it go away!
Here's the metadata your camera is placing into the RAF file and what LR is reading and applying:
File Name                       : robertson-2.raf
File Modification Date/Time     : 2019:07:31 16:56:28-04:00

Geometric Distortion Params     : 327.7272727 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0 -0.075 -0.153 -0.236 -0.326 -0.458 -0.693 -1.062 -1.552 -2.122 -2.734

Field Of View                   : 90.0 deg
Focal Length                    : 12.0 mm (35 mm equivalent: 18.0 mm)
Hyperfocal Distance             : 0.90 m

File Name                       : robertson-3.raf
File Modification Date/Time     : 2019:07:31 16:56:30-04:00

Geometric Distortion Params     : 327.7272727 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0 -0.086 -0.181 -0.292 -0.428 -0.634 -0.98 -1.482 -2.121 -2.805 -3.515

Field Of View                   : 93.3 deg
Focal Length                    : 11.5 mm (35 mm equivalent: 17.0 mm)
Hyperfocal Distance             : 0.81 m

As I say, it does that even without touching the camera, in the middle of a multi-shot automated bracket of five pictures. So somehow, it seems to misinterpret the information. Which is shown by the fact that setting all lens corrections to 0 in Capture One for both images makes them align perfectly. Which raises the question of why Capture One sets Distortion correction at 100 for one image and not for the other.

I examined the EXIF data and the robertson-1.raf and robertson-2.raf file focal length show as 12.0mm and the robertson-3.raf as 11.5mm. LR reads these value and applies distortion correction based on that value, which is obviously slightly different. I opened the -1 and -3 files in Luminar Flex, disabled distortion correction, and exported to TIFF. Examination of the lower-left corner of the Luminar Flex TIFF files at 1:1 Zoom view reveals a very slight difference in -3 image file. This can only be caused by the lens focal length ring having been moved.

The only suggestions for now is to try not to touch the camera between shots by using a remote trigger or Fuji tethering software, which will also allow changing camera settings.  For your currently shot image files you can use the below plugin to change the focal length so they all match. That may work since LR will then apply the same distortion correction to all three files.


https://www.lenstagger.com/

LR has the habit to automatically apply the lenscorrection profile if that comes with the RAW-file.

even in such a way that there is no way to NOT apply it.

Some other RAW converters can ignore this lensprofile and give the photographer a way to choose.


There are many situations that you do not want to have the lensprofile
applied. ( one is when making panoramas, another is if one likes vignetting)

Therefore it should be a choice of the photographer to
apply the lens-correction or not, as is the case when the RAW-file does
not have the lens-correction information built in.

I would very much appreciate it if the LR designteam finds a way to add this feature.

When I first import them into Capture One, one image, robertson-2, has no Distortion correction in Lens Correction, however robertson-3 has Distortion set at 100. They appear the same then as they do in Lightroom. Setting Distortion back to 0 on robertson-3 brings them into alignment, as in the gif above.

Strange too on the Built-in Lens Profile showing for all. That's what I had thought I'd seen at first, but now I get this when Enabled.

Of the five shots in the bracket, the first shows as 12mm, then 11.5mm, then 12mm, 12mm, 12mm. And as I said, no contact with the camera during the series.

I see that too, but it's actually false. Here are two shots from the same series, but bracketed with no contact with the camera between shots. One shows as 11.5mm and the other as 12mm.
https://www.swisstransfer.com/d/5b051946-21b9-49f0-85c9-deb038815941
Also, that doesn't explain why the photos do align in Capture One (which also shows one photo as being at 11.5mm and one at 12mm).