427 Messages
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7.7K Points
Wed, May 2, 2012 4:23 PM
Solved
Lightroom 4.1 RC2: Artefacts when using shadows, clarity and image warp (lens corrections)
Just to make this into an "official" problem: There are strange artefacts when using shadows, clarity and image warp (lens corrections).
Details here:
http://forums.adobe.com/thread/997568...
http://forums.adobe.com/thread/995958...
Also applies to ACR 6.7 final, which shows the same artefacts for LR-images edited in Photoshop (rendering using photoshop's ACR).
P.S. May be related to http://feedback.photoshop.com/photosh... but I think they are two different/distinct problems (however, both seem to be introduced with changes in clarity in RC2).
Details here:
http://forums.adobe.com/thread/997568...
http://forums.adobe.com/thread/995958...
Also applies to ACR 6.7 final, which shows the same artefacts for LR-images edited in Photoshop (rendering using photoshop's ACR).
P.S. May be related to http://feedback.photoshop.com/photosh... but I think they are two different/distinct problems (however, both seem to be introduced with changes in clarity in RC2).
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todd_shaner
130 Messages
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2K Points
9 years ago
I'll add that the artifacts appear to be caused by aliasing of the adjustment layer masks.
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RikkFlohr
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9 years ago
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todd_shaner
130 Messages
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2K Points
9 years ago
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lrsuer24
427 Messages
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7.7K Points
9 years ago
Of course, we normally don't see those masks.
EDIT: Sorry, somehow I did not see the answer from Todd Shaner above this post. So my post is redundant ;-)
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RikkFlohr
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24.5K Points
9 years ago
If the furor the Kelby group and onOne had to deal with regarding the marketing of Perfect Layers is any indication, we want to avoid imprecise descriptions that can be confused by the user base.
Just my opinion of course.
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todd_shaner
130 Messages
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2K Points
9 years ago
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lrsuer24
427 Messages
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7.7K Points
9 years ago
Click on preview to see the animation (1 MB). Lens correction -> manual -> rotation varies between 0...2.5 (100% crop, shadows and clarity at +100).
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wm_bailey
5 Messages
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124 Points
9 years ago
"When" the Lens Correction Panel is enabled (including the "Color" tab) - AND when I apply Clarity - I get major peculiar artifacts tot he right of my moon shot.
When Lens Corrections are Not Enabled - I can have Clarity set to 100 - and I see Zero Artifacts, nor do I discern any weird results.
"When" I have Clarity set to "0" with Lens Corrections Enabled - I get major purple fringing and other color anomalies.
(Thus - originally I assumed it was a "Clarity" slider issue - as the title indicates - but in fact in my case it is distinctly a Lens Correction issue (when using the Clarity slider)
I can provide a Tiff and my Lr4 catalog to Becky or any Adobe staff at their asking.
Thanks for the opportunity to help.
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lrsuer24
427 Messages
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7.7K Points
9 years ago
P.S. Why is this problem marked "solved" now? All latest PV2012-capable ACR variants still have this bug: ACR 6.7 final for CS5, ACR 7.1 of LR 4.1 RC2 and ACR 7.1 RC for CS6 (don't know about ACR 6.7 final for PSE/PRE, though). Or does it just mean "internally solved", i.e. bug was found+fixed, but did not make it into an update yet?
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wm_bailey
5 Messages
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124 Points
9 years ago
2
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lawrence_braunstein
6 Messages
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162 Points
9 years ago
This reply was created from a merged topic originally titled
LR 4.1 RC2 bug (Develop Module).
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todd_shaner
130 Messages
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2K Points
9 years ago
This bug will be fixed in the LR4.1 final release.
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lawrence_braunstein
6 Messages
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162 Points
9 years ago
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todd_shaner
130 Messages
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2K Points
9 years ago
This is why I said you must also set the Lens Profile "Distortion" amount to '0.' You can then update the Lens Profile by clicking on 'Setup' (under Enable Profile Corections checkbox) and select 'Save New Lens Profile Defaults.' You will need to do this for each lens type and you can always change it back later.
I personally set all my lens profile defaults to '0' Distortion and only use it when there is visible barrel or pincushion distortion in the image. Wide angle zoom lenses typically have some barrel distortion and correction will cause the image periphery to become elongated and cropped. I actually prefer the look without distortion correction, especially for ultra wide angle landscape shots.Try both 100% and then 0% Distortion settings with one of your wide angle landscape images to see what I'm talking about.
Once you do this you should not see the haloing artifacts. Let us know.
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lawrence_braunstein
6 Messages
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162 Points
9 years ago
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