jaapv Posted January 7, 2009 Share #1 Posted January 7, 2009 Advertisement (gone after registration) We all know them. C1 does it slightly less than ACR, and ACR has a moderately successful tool for them.For the rest I tend just to ignore them, or, in extreme cases, convert to B&W I found, quite by accident, a trick to reduce them further. I was doing a series of city shots at night, where there were quite a number of these pesky purple blooming bands around specular highlights.. I have a habit of enhancing colour in LAB mode, and did it here as well. To my surprise converting to Lab-->Apply Image--> B channel--> soft light--> opacity 70%, removed quite a number of them and reduced the rest further. Some images needed playing about with the settings a bit (hard light, lower percentage) If needed correct colour saturation and contrast after converting back to RGB. Link to post Share on other sites More sharing options...
Advertisement Posted January 7, 2009 Posted January 7, 2009 Hi jaapv, Take a look here Purple edges to highlights. I'm sure you'll find what you were looking for!
erl Posted January 7, 2009 Share #2 Posted January 7, 2009 I just read today that the latest release of C1 Pro Ver 4.6 has a tool or setting for eliminating purple fringing from specular hightights. It was in one of the pages towards the end of the 111 page PDF that P1 published with the release. Unfortunately, my attempt to upgrade failed so I can't test it at present. Link to post Share on other sites More sharing options...
Marquinius Posted January 12, 2009 Share #3 Posted January 12, 2009 Jaap, Just learned a trick from Kelby's book "seven point system": what you do is correct, but you can even go one step further during sharpening process. Sharpen through unsharp mask and immediately go to "edit" and click "fade unsharp mask".There choose "luminosity". This way you avoid sharpening the color channels. Marco ps: ain't straightforward instruction books a pleasure! Link to post Share on other sites More sharing options...
jaapv Posted January 12, 2009 Author Share #4 Posted January 12, 2009 You´re right Marco. I have that trick under function keys in four strengths. I would not consider using USM without. Link to post Share on other sites More sharing options...
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