"Built-in Lens profile applied" to Fujifilm RAW but it doesn't appear to be corrected

Forum|Forum|3 years ago
October 31, 2022
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I am using the Lightroom Classic v12 (macOS). I use a Fujifilm X-T4 with various lenses. I have noticed that for some lenses, the resulting JPG and RAW pairs do no match in terms of distortion. Even if the Lens Correction palette says, "Built-in Lens Profile applied", my RAW will not appear corrected when I toggle back and forth between the matching JPG — the difference is obvious.

I would expect the on-camera JPG to match the RAW in terms of distortion/crop. So far I've noticed this issue with the Fujinon XF16mmF2.8 and XF35mmF2. But other lenses (XF6mmF1.4, XF33mmF1.4, and XF50mmF2) do have matching JPG/RAW files.

This could certainly be a Fujifilm Profile issue. But Lightroom confirms that a Profile has been applied. See my screenshot of the LrC popup window. I'm trying to determine if there's an issue where Lightroom is not acutally applying it, or if it's an issue with my camera, when these lenses are attached. Clearly LR thinks it's working.

I've attached JPGs of a JPG/RAW pair to show how obvious the change is, and an animated gif of the two. I'm curious if anyone else has experienced this issue with Fujifilm or another camera maker. Thank you.

macOS

이 주제는 답변이 닫혔습니다.

GoldingD

Legend

Would you happen to have a backdrop, a piece of paper, with a grid on it to photograph, on a tripod, with sensor absolutely parallel with backdrop. Point is to take a shot and look at the barrel distortion. A simpler, cleaner image to show it.

https://photographylife.com/what-is-distortion

André Mora작성자

Participating Frequently

Thanks. I'll try to figure out a better backdrop for your assessment. Can you at least confirm what you see in the animated gif? The difference seems clear to me, but it sounds like some people see no movement.

GoldingD

Legend

I see too much tonality changes, perhaps curve changes, etc, too see thru to any distortion, such as the twig bending, or the edge of the rock Altering.

GoldingD

Legend

Might be hard to see on an iPad, and might be hard to see on the web, but are you sure that your are referring to chromatic aberration and/or linear distortion? Or differences in contrast, tonality, and sharpness?

https://exposuretherapy.ca/photography-guide/lens-aberrations-and-distortion/

André Mora작성자

Participating Frequently

Thanks. I am not referring to ANY changes in color, tone, contrast, etc. Fujifilm is known for how much on-camera processing occurs, specially with their film simulations.

I believe I am specifically seeing uncorrected barrel distortion. Are you able to see the animated gif that I attached? It switched between the processed JPG (rich in color) and the flat RAW, which appears to bulge in the center (all the way out to the edges). In other Fujinon lenses, there is no visible shift like this — the camera jpg and embedded profile in the raw appear to be identical.

André Mora작성자

Participating Frequently

I am not experiencing what you are stating with the images you have shared. If you wish you can share the original raw image via Dropbox or the like and other users can check on their systems.

Thanks for looking. I'm learning this is highly subjective. I know it's subtle. Can you see any difference in the animated gif? I made a new one with a brick wall. They are attached, along with a Dropbox link.

To my eyes the on-camear JPG has been corrected, while the RAW appears to barrel in the center and the corners—despite LrC stating that the built-in profile has been applied.

It is possible that Fujifim's on-camera correction differs from the profile it embeds. But I have noticed that on other Fujifilm lenses, the jpg/raw pairs match in this regard.

https://www.dropbox.com/scl/fo/pnkgd7ocqc19bskzuhwx8/h?dl=0&rlkey=37bsy8npryvlk0voy9aggcla8

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