Red contours

[Peter L-m]

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Hi. I'm a fairly new Leica owner. (CL with Summilux-TL 1,4/35.) I have searched this forum to find an explanation to the "red contours"-problem I have encountered, but didn't find the answer so I post this question.

See screenshot from Photoshop window, looking at 100% zoom of one of my recent photos. (f/1,4, shutter 1/2500, ISO 100.) Where does this red edge/contour come from? Looks a bit like the focusing aid you can choose when looking through the viewfinder. 

I didn't notice this problem when looking at the photos in the camera. It appears also when I check out the photo in my Mac computer's Finder window.

Thanks in advance for your help with this issue. /Peter L

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[jaapv]

Looks like chromatic aberration to me. Try using the dedicated slider in ACR. Or the colour replacement brush. 

[LocalHero1953]

For that lens, an aberration creating just a red line seems unlikely - I never had that effect when I had the CL and the lens, which is one of Leica's finest.Is ACR/Photoshop showing the correct lens profile? Do you see it on all files?

[Peter L-m]

Thanks for your input. No, certainly not on all files. So for (6 months) I've been very happy with this combination (CL + Summliux-TL), this is the first time I encounter this problem. I'll check Photoshop for the lens profile.

[Peter L-m]

PS. Photoshop recognizes the lens and says it's applying the automated corrections for chromatic aberration in this particular lens.

[jaapv]

Don’t depend on automatic correction for CA in out of focus areas.

[Peter L-m]

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Thanks, Jaap. I realize that now, after reading up some more on CA. Still, this remains a minor problem, most of my photos with this lens turn out excellent 

[ruskkyle]

I use this combination a lot and yes, that looks like classic CA you get from time to time with this lens To be fair your image would be a bit of a torture test for any lens (white birds against a dark background) and the 35 TL is struggling a bit.

In Lightroom use the dedicated chromatic aberration slider and pipette to select the exact shade of pink/red for removal. Should look great afterwards.