Participating Frequently

P: Strange moiré patterns with high ISO images with Lens Correction

Forum|Forum|3 years ago
June 16, 2022
24 replies
8028 views

I was editing some events photos and started noticed a strange pattern with low light files, and with the Lens Correction feature activated. I increase the exp so you can see better the lines. ISO 6400. Check the file

macOS

D

Da Uff

Participant

Issue definitely not even improved: I have tested several ACR distros(from 14.5 to latest 17.1) and got absolutely totally the same moire/banding.

Rikk Flohr_Photography

Community Manager

Greetings all,

A new update for Adobe Photography Products has been released. The December update contains an update for this issue. Note: The issue is improved but not wholly mitigated.

If you do not see the update in your Creative Cloud Application, you can refresh it by hitting [Ctrl/Cmd]+[Alt/Opt]+[ R ].

Note: It may take up to 24 hours for your update to be available in your Creative Cloud app.

Thank you for being so patient.

Rikk Flohr: Adobe Photography Org

K

kayaker72

Participant

I have recently been noticing an odd pattern in some of my LR processed images. Attached are two from the recent comet. With the Lens "Profile Corrections" enabled, you get this odd pattern. Disable it, the pattern goes away.

I, of course, would prefer to have the "Profile Corrections" enabled, so disabling it is not much of a fix. Any other suggestions or does Adobe just need to fix something.

[Moved from ‘Bugs’ to ‘Discussions’ by moderator, according to forum rules.]

GoldingD

Legend

Are those actually different images? File names the same, they look the same, and I cannot see the issue.

You may want to post the RAW files and a accompanying xmp file, on a share such as DropBox, so that other members can take a look on their rig in their LrC.

Also, you may want to post an picture , perhaps annotated to point out the issue. Create the jpeg, and in a image editor annotate it, then in the post, use the Insert Photos button.

By the way, for images (not RAW) the Insert Photos button works better as opposed to an attachment. In posts, attach huge documents like crash reports, Insert simpler items like raster images.

K

kayaker72

Participant

Thanks. Yes, those are the same image. Small-3999 has the pattern, especially if you look in the top part of the image. The second image, Small-3999-2, I have unclicked the "Enable Profile Corrections" for the lens in LR.

J

JMilvain

Participating Frequently

This thread now goes back two years, with numerous examples of the problem to be found in forums elsewhere, and seems to be something Adobe has no interest in addressing. Clearly it's possible to apply lens correction profiles without a grid pattern being superimposed, as other other RAW processors are able to do it, and sending the file on a round trip to Photoshop removes it.

J

JMilvain

Participating Frequently

After a little further experimentation, it doesn't seem like there's a way to completely eliminate this pattern without disabling lens profile corrections, but it is possible to reduce it to the point where it's nearly invisible, short of the most extreme manipulations. Aside from opening the file in Photoshop and sending back as a TIF, both the Iridient plug-in (for X-Trans files) and DXO Photolab do a far better job of applying their built-in corrections without the warped grid being obvious. Just remember (as I did not initially) to turn off profile corrections in Lightroom, or you'll get that on top of the corrections already applied. When sharpening, turning down the details slider and turning up radius and masking also helps.

The culprit here is clearly Camera Raw and the way it's implementing the Adobe lens profiles.

J

JMilvain

Participating Frequently

I've seen this discussed elsewhere, but not with this particular behavior. On certain high-ISO shots, my Fuji X-T5 RAF files show a distinct warped-grid pattern that corresponds to the lens profile correction being applied. Turning off profile correction makes the grid disappear, leaving me with the lens' native distortions visible. Using manual correction makes the grid reappear. The "enhance" function doesn't fix it. DNG files imported from Photolab or Iridient show the same effect. Sharpening or use of texture or clarity sliders makes it worse. Based on posts I've read in various forums, this issue is not unique to Lightroom's handling of Fuji files.

If I send the file to Photoshop, save it as a TIF, and then reopen it in Lightroom, the grid pattern is gone. This workaround is not ideal, adding yet another step and file in addition to the orginal RAF and the enhanced-details DNG. This looks like a bug to me and I'm curious if someone can explain what's going on.

I've attached two screenshots, using ALT+Mask to emphasize the pattern. The first is the RAF file viewed in Lightroom. The second is the same file after being returned from Photoshop as a TIF.

Latest versions of both programs on Windows 11.

C

catto1111

Participant

@Rikk Flohr: Photography Yes, Pattern is visible even after AI Denoise. It's been almost a year. Adobe should fix this issue.

A

apatni

Participant

It's 2024 and I still see the issue in Lightroom 13.1. How much longer is it going to tak to fix this?

C

catto1111

Participant

Hello,

After applying lens correction for following image, I am able to observe kind of ripple effect. I have noticed this issue on only 2-3 (dark)images, on other images it works fine.

Before: _DSC0041.JPG
After: after.jpg

RAW: _DSC0041.ARW

Thanks

_DSC0041-ARW.zip