New Canon EF 85 1.4 - Need Advise.

Question - is this normal for this wide of a lens in regard to chromatic abberation. I see lots of purple fringing when zooming in to 100% and am unsure if I got a bad copy or if this is normal at 1.4. Posting 2 images. one at 1.4 and one at 2.8. It pretty much disappears if I stop down more. FYI this is the CENTER of the image.

Another image at 4.0

No need to worry. Wide aperture primes like this will almost always exhibit some CA (some more than others), especially with high contrast situations like you've posted. The good thing is that it's minimal with this 85L, and it's easily correctable in post.

Your lens is working just fine, go out and enjoy

MatthewK wrote in post #18666541
No need to worry. Wide aperture primes like this will almost always exhibit some CA (some more than others), especially with high contrast situations like you've posted. The good thing is that it's minimal with this 85L, and it's easily correctable in post.

Your lens is working just fine, go out and enjoy

Thanks!!! That was my conclusion as well after some significant research - lots of googling. Short of an Otus which is way too expensive for me this is not unexpected. Of course I took a picture of something that would display this issue very well - go figure. I did further tests for sharpness later - on a flat box with wording and was very pleased with the results. So thanks a lot for the feedback - it is greatly appreciated.

MatthewK wrote in post #18666541
... and it's easily correctable in post...

im learning post processing so would it be something that doesnt need a bunch of layers and masks?

Lightroom can fix that with a click or two. Back to at least version 4, IIRC. Very easy fix.

Only the very latest subscription versions of Lightroom have lens profiles for the Canon 85 1.4 lens. I have the final perpetual version 6 Lightroom and it doesn’t have profiles for the 85 1.4. If there’s a workaround for this combo I’d like to know how. Thanks.

cristphoto wrote in post #18670290
Only the very latest subscription versions of Lightroom have lens profiles for the Canon 85 1.4 lens. I have the final perpetual version 6 Lightroom and it doesn’t have profiles for the 85 1.4. If there’s a workaround for this combo I’d like to know how. Thanks.

In the Develop Module, down where you you can enable Profile Corrections, instead choose the Color tab. In there, there's a section for CA correction, specifically you are looking for the dropper tool. Zoom in on the CA in your photo, use the dropper tool to select it (either magenta or green), and it should correct it. If there's still remnants, you can use the sliders to broaden the color sample until the fringe disappears.

Removing the CA isn't 100% without drawback though... if there's a good amount of it, the area that had fringe turns to white, so you might get some weird white borders on things. Usually doesn't bother me, but in certain circumstances it is noticeable.

Here's a How-To from Scott Kelby that depicts what I'm trying to say:

https://lightroomkille​rtips.com …aberrations-in-lightroom/

Thanks for the helpful advice. I got spoiled by the one-click ca fix in Lightroom. I’ve heard you can manually create a lens profile or go go an Adobe site and download one but haven’t tried yet.

I see in your profile you are using an M50. Are you turning on the aberration correction for the 85mm, assuming it has a built in correction profile?

Supposedly Canon no discontinued geometric distortion correction on their EOS M series cameras in January 2017. The in-camera correction (check menu) only affects peripheral illumination like light falloff in the corners but it retained the chromatic aberrations correction. So it should minimize things like vignetting and chromatic aberration.

If your response was for me I don't have an M50.

The 85s are particularly notorious for this; nothing to worry about. In LR, it's fixed by checking the 'Remove Chromatic Abberation' checkbox, in the Develop panel, under Lens Corrections. Other tools use different terminology, but it's still relatively quick to address.

Canon DPP sorts that in one click.

cristphoto wrote in post #18670668
If your response was for me I don't have an M50.

No, but the OP's profile says he does.

Actually then M50 is the Wifes. I am using this on a 5D Mark IV.