Help troubleshooting image distortion Sony A7III & sigma 24-70mm

Cerberus · 27 Apr 2020 at 16:55

Looking for some help from the more experienced photographers here.

I have this weird issue when it comes to my images.

I shoot on a Sony A7III with a new Sigma 24-70mm DN ART lens. On my 24mm focal length when I use the profile correction in lightroom I get what looks like a white ring around the edges of my images.

On the link you can see the effect bottom left hand side of the image, slight visible on the top left as well

*Edit it's on all 24mm images night or day after profile correction*

https://photos.app.goo.gl/ebiQjFWGvCWdpNZP9

Crop of the distortion

https://photos.app.goo.gl/MNJy49vVQcyoTrK68

The jpegs straight from the camera doesn't seem to have this issue, it's when I use lightroom profile on the 24mm focal length.

Any suggestions?

Raymond Lin · 27 Apr 2020 at 17:01

is it only at night? what about in the day?

Cerberus · 27 Apr 2020 at 17:03

Raymond Lin said:
is it only at night? what about in the day?

Sorry should have said, it's on all images at 24mm night or day, i just used a night image as it's most prominent

Raymond Lin · 27 Apr 2020 at 17:05

Cerberus said:
Sorry should have said, it's on all images at 24mm night or day, i just used a night image as it's most prominent

What if you don't use profile correction?

Cerberus · 27 Apr 2020 at 17:09

Raymond Lin said:
What if you don't use profile correction?

It's hidden by the vignetting and barrel distortion

Raymond Lin · 27 Apr 2020 at 17:11

Cerberus said:
It's.

It's hidden by the vignetting and barrel distortion

I am trying to determine whether it is caused by over correction from the profile correction or the lens.

So do you see it if you don't apply the profile correction? Do you see it in the RAW file?

Cerberus · 27 Apr 2020 at 17:22

Raymond Lin said:
I am trying to determine whether it is caused by over correction from the profile correction or the lens.

So do you see it if you don't apply the profile correction? Do you see it in the RAW file?

No but the raw file needs to be corrected. I would have thought if it was a profile correction issue I would have heard other people talking about it but so far no luck.

Raymond Lin · 27 Apr 2020 at 17:39

Cerberus said:
No but the raw file needs to be corrected. I would have thought if it was a profile correction issue I would have heard other people talking about it but so far no luck.

It looks to me the profile from Adobe is overly aggressive with the lens at 24mm.

p.s. I have the same camera and lens.

Cerberus · 27 Apr 2020 at 17:47

Mind if we swap a few raws to see if it's recreated?

Raymond Lin · 27 Apr 2020 at 17:49

Cerberus said:
Mind if we swap a few raws to see if it's recreated?

pm me, I will wetransfer you a couple of RAWs to test.