7/25/2023 0 Comments Defringe rawtherapee![]() ![]() LR/ACR 'Remove Chromatic Aberrations' in the Lens Corrections> Profile panel should be checked as your Develop Default Setting. The result seems to be very near to the ACR quality.There should be no need to resort to creating layers in PS, etc. After the Layer Mixer one last node with denoise (in my case Luma 2 and Chroma 10).īasically this method mainly adds Qualifier (and noise reduction) to the old Nick D. After this, another node with Gain 0.01 and a good point of blur (0.6) that ends to the Layer Mixer (2nd input) ĥ. Restarting from the source, a node isolates the fringe color (Qualifier) and desaturates it (in comb with Hue) Ĥ. A node after the combiner has saturation 0 and a very little sharpness (0.48), then it ends to a Layer Mixer ģ. Splitter/Combiner: Green with just little luma denoise (3 in my case), Red and Blue a bit more (5 and 6) Ģ. So I tried to find another node-only-based solution that's the following:ġ. ![]() and it's visible in highlights/contrast edges.ĪCR manual Defringe is fanstastic and does perfectly the job, so one workflow could be MLV-to-DNG (Switch), then DNG-to-TIFF (ACR with Defringe), then grading TIFFs in Davinci (but losing RAW tab).Īt this point the great question is: what is better, losing RAW tab for working with perfect TIFFs, or trying to solve the fringe directly in Davinci and enjoy the flexibility of Raw tab?Īs I wrote, Nick Driftwood method works but in my opinion is not clean actually. Only at this point I read that Switch uses Exiftool, so my question is: could this 2 installations (Switch and Exiftool) be in conflict? Should I uninstall Exiftool?įirst of all, the fringe in my case is lateral chromatic aberration caused probably by various things: anti-aliasing filter in 5D3, lens (Tamron 24-70), filter (Hoya UV), etc. Then I downloaded the updated Switch for overwriting the old one. In Switch mlv_dump, if you DON'T select the option (07) disable vertical stripes in highlights, means that Switch DOES fix the vertical stripes, right?Ģ. Just another couple of secondary questions:ġ. ![]() ![]() Should I use IR filters? (Like BMPCC users.) Perhaps setting the white level in Switch? (but Exiftool method didn't give any result.) Now, considering that I need to use Switch (for MLV to DNG conversion) which is the cleanest method that fixes the purple/green fringe AND lets me grade in Resolve? (Right here a little secondary question: ACR-saved-DNGs' size is about half the size of the original Switch-DNGs, why?) ACR method appears to be that "clean" solution: it's simply based on Remove Chromatic Aberration option (Lens Corrections tab) and it works BUT only in ACR: importing the fixed ACR-DNGs in Resolve, the fringe is still there! as if the ACR corrections are NOT visible in Resolve (even exporting the original DNGs to new ACR-DNGs). Said that, I roughly agree with the fact that this 3rd method is rather old (Davinci 9) and it seems not “ideal”, not pretty clean Ĥ. (Even though appending nodes in Resolve makes applying 'de-fringing' corrections to many clips very fast, it isn't really ideal).» The article continues with the good news that Resolve 10 auto-magically fixes the fringe, but it's actually not true for me. Nick Driftwood's Resolve node-based method is artful and it works, but (quoting an article by Dave Kendricken) «Some users, however, felt this workaround was too much of a compromise to be considered a viable alternative to an Adobe Camera RAW workflow. RawTherapee has a Defringe tool that sounds promising, but again I must say that this 2st method doesn't work with me ģ. But I must say that this 1st method doesn't work with me Ģ. Iliah Borg's method for BMPCC footage is based on RawDigger histogram analysis of the DNG file for finding the closest value to the extreme highlights noise and setting that value as white level of the DNG via Exiftool. I've found many webpages about the same issue, some older some newer, but I can't find a clear and updated method to fix the purple/green fringe in Raw highlights (and perhaps a little general color cast in MLV files from 5D3).ġ. ![]()
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