(I read " Your topic is similar to…" but didn’t quite see what I had in mind…)
Severe chromatic aberration is pretty much impossible to manually eliminate and would require some form of “intelligence” to correct, especially if it isn’t at all linear in its appearance (across an image).
A similar problem would be what’s known as “coma”…
AI based solutions would be sensational…
@beexact-77068 Thanks for sharing.
You’re right, doing this manually would be near impossible. At the same time something like this would be hard to build from an AI perspective as well. I’ll mention this to our developers to see if and when we could consider fitting this into our roadmap.
There are indeed a lot of problems that I only really became aware of through my involvement with AI.
We’re talking about open aperture, 1.2, 2.0, etc., so to speak.
As the thread creator already said coma, this comes from the physical shading of the lens and is design-related, the new RF 50 1.2L has this, for example, at open aperture, which is also reflected in the bokeh.
Chromatic aberration occurs not only at sharp edges but also in the bokeh, where they are not yet correctable.
And CA affects the white balance, which is why I always have problems with my EF 50mm 1.2L, because in the background the bokeh CA can virtually go over the entire background and thus distort the white balance.
While the white balance in the foreground is fine, e.g. where the people are, the entire out-of-focus background can become greenish.
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I’m using a Nikkor 70-200 VRII a lot…it’s a very good lens in my opinion, but it does produce some CA towards edges, if contrast is great…in many cases, I “correct” this in Photoshop, manually…it’s usually doable (but dull and time consuming).
I also have a Tokina 11-16, 2.8 lens that I first thought was very, very good, but later noticed pretty severe CA in corners of images…again, when there was high contrast content there…
I have kept some images in hopes of some day being able to “fix” them…
Years and years ago, I refrained from deleting some images that were just a tad too “soft”, hoping that some day, I might be able to “correct” them. This was long before there was any hint of AI based solutions and most people would have laughed at such a suggestion…(that “actual sharpening” could eventually become possible)…but here we are. What I have seen from Topaz, has been very, very impressive…
Sometimes you can just go ahead and take another shot…but sometimes you can’t…
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I’m glad you like it!!
Hello Tim,
Best wishes !
Is CA removal have been put on Topaz Video AI roadmap since then ?
It would be a serious asset to Topaz AI, considering that currently we need to mitigate this manually, which is imperfect and time consuming…
Thank you to consider it 
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