Lightroom Classic: Artifacts appear when exporting photos

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  • Updated 2 months ago
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  • (Edited)
Recently, artifacts have begun appearing in photos I've been exporting from Lightroom Classic CC. I've never had this issue before. Tried adjusting a bunch of export settings without any luck.

Any help would be appreciated. The first photo below is an exported JPEG at 100% quality. The second is a screenshot from the Lightroom Classic app.

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Eric

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Posted 2 months ago

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Steve Sprengel, Champion

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Show us your File Settings, Image Sizing and Output Sharpening settings on the Export panel.

And if you want, upload your master photo (not the exported JPG) to somewhere like dropbox or googledrive or onedrive and post a public share link, here, so we can try it out.
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Eric

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Here's a screenshot for the export settings, and a link for the master photo.

https://drive.google.com/open?id=1WVTsM0h7RdQHvaWcbXfKzPUCFRhu7g1H

I should stress here that I was having no problem getting exports without artifacts using the same settings, camera, file type, etc. until a little while ago.
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Steve Sprengel, Champion

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So your Export settings seem ok as far as not adding or sharpening any noise.  You're running LR CC 7.4, right?

In LR, what are your Toning settings and Detail settings:  the settings that add contrast and the settings that mitigate noise?

If I start with your NEF and import which gives me Adobe Factory Defaults since I haven't defined any customer default, then do Dehaze +70 to give the sky more contrast like in  your image, although you probably added contrast differently, I can see quite a bit if ISO noise in the sky.

To mitigate that noise I turn up the Sharpen Mask slider to 90 so we're only sharpening edges, and I can still see a bit of ISO noise in the sky so I add some Luminance NR of +25, then I see no ISO noise in the sky and unlike your situation, my export matches the screen preview reasonably well although the change in Color Profile to sRGB during Export has made the sky slightly darker in the darkest areas.

Without knowing what settings are applied to your NEF before you exported, it's still not clear if the issue is the display of the preview that shows no noise or the Export that is adding noise, somehow, for you.

In my case if I mitigate the noise in the onscreen preview I don't see much in the exported image, either.

Here is a side-by-side before and after changing the Detail settings which demonstrates the sky noise I was seeing without some Masking and Lum NR:



Here is a side-by-side showing no noise on the preview nor the exported image, once I've mitigated the noise in the preview:


Photo of Eric

Eric

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Thanks for taking the time to try out all of that. I've attached a couple of screenshots of my Develop settings. I'm using Lightroom CC 2015.10.1., dehaze is set to +30, some sharpening and noise reduction settings are used.

As I was saying before, I've made similar changes to other photos before without running into this issue. Now it's coming up in each photo I edit/try to export.

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Victoria Bampton - Lightroom Queen, Champion

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> I'm using Lightroom CC 2015.10.1

That's pretty ancient, so it could be a bug that's been fixed since that version was released. 

Before we go any further, update to Lightroom Classic 7.4, which is the latest release of traditional Lightroom.
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Eric

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I updated the app a few weeks ago. Also, the Creative Cloud app suggests the Lightroom Classic CC app is up-to-date. It might be 7.4, the build # is 1117303.
(Edited)
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Victoria Bampton - Lightroom Queen, Champion

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Make sure you're opening the right version then, as the screenshots you've provided above are not from 7.4.
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Eric

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Ah, you're right. Looks like I was using an older version of Lightroom. I'll run 7.4 and see if the issue still comes up.
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Steve Sprengel, Champion

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Beyond using the right LR version, you should probably be using some Sharpen Masking to keep from sharpening the ISO noise in smooth areas like the sky:

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Eric

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Fair point. I just tried exporting the same photo with 7.4, and didn't see any artifacts. Thanks everyone for the help.