14 Messages
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320 Points
Lightroom: Purple Fringing (PF) removement option
Hi,
I have some lenses which do produce so called purple fringing (PF) in high contrast situations. This is a flaw in the picture then.
Even though I use Lightrooms lens profiles and the correction function for CAs there still stays some substantial bit.
Now I did play around with the free RawTherapee 3.0 (forgive me for naming a competitor product here) as somebody told me there was a separate Defringing function in there.
I have to say RawTherapee was able to fully remove all PFs in one go, much better than LR.
Now Lightroom is much better generally IMHO and I want to use it alone.
I'd find it wonderful, if a similar feature would show up in Lightroom in the near future.
It does not sound too hard to do.
I have some lenses which do produce so called purple fringing (PF) in high contrast situations. This is a flaw in the picture then.
Even though I use Lightrooms lens profiles and the correction function for CAs there still stays some substantial bit.
Now I did play around with the free RawTherapee 3.0 (forgive me for naming a competitor product here) as somebody told me there was a separate Defringing function in there.
I have to say RawTherapee was able to fully remove all PFs in one go, much better than LR.
Now Lightroom is much better generally IMHO and I want to use it alone.
I'd find it wonderful, if a similar feature would show up in Lightroom in the near future.
It does not sound too hard to do.
Responses
lrsuer24
427 Messages
•
7.7K Points
10 years ago
The CA corrections do not really help with PF - on the contrary, they may render the "normal" parts of the image worse if only used on the PF.
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rob_cole_2221866
4.5K Messages
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76.3K Points
10 years ago
OK to merge, LRuser24? (if not merged fairly soon, I'll vote for it here)
It seems to me too that Lightroom's (sometimes purple) fringe removal is not very effective. On the plus side, it doesn't inadvertently rob the photo of any color when you turn it on.
DxO's fringe removal is very effective, but sometimes sucks the life and color out of areas that aren't even fringy.
There's gotta be some way to tackle that fringe better without affecting color in non-fringy areas.
PS - sometimes there is a fine line between fringe and longitudinal CA. There needs to be a way to remove both - if not automatically, then at least manually.
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tk_images
513 Messages
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11.1K Points
10 years ago
1
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rob_cole_2221866
4.5K Messages
•
76.3K Points
6 years ago
Although I still think there is room for improvement fringe-removal-wise, the current implementation in Lr5 is pretty darn good.
R
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