topic Re: Dark rings around JPEGs with Sigma lenses? in EOS DSLR & Mirrorless Cameras

Dark rings around JPEGs with Sigma lenses?

SolomonShawn — Wed, 06 May 2020 10:52:58 GMT

When I shoot JPEG with my 1D-X and Sigma art lenses, I get dark rings around the JPEGs. I shoot both raw and JPEG, and when the CR2 converts to a DNG format, the rings disappear. But no matter what settings I use, the JPEGs are unusable, and I can't find anything in Photoshop or Lightroom to remove the rings. Can someone tell me what's wrong and how to repair it? I get otherwise gorgeous pictures with the Sigmas.

Re: Dark rings around JPEGs with Sigma lenses?

Ray-uk — Wed, 06 May 2020 10:55:25 GMT

Turn off "lens abberation correction" in the cameras menu, this is designed for Canon lenses and produces ring type patterning when used with some third party lenses.

Re: Dark rings around JPEGs with Sigma lenses?

shadowsports — Wed, 06 May 2020 13:36:52 GMT

@SolomonShawn,

Can you post an example for us. I'd like to see what you are getting for my own curiosity. Vignetting or CA, etc??

Re: Dark rings around JPEGs with Sigma lenses?

jrhoffman75 — Wed, 06 May 2020 13:59:11 GMT

https://community.usa.canon.com/t5/General-Camera-Discussion/Dark-rings-around-JPEGs-with-Sigma-lenses/td-p/212531

https://www.sigmaphoto.com/article/firmware-update-for-sigma-canon-mount-lenses-01-24-2019/

Re: Dark rings around JPEGs with Sigma lenses?

shadowsports — Wed, 06 May 2020 23:41:39 GMT

John,

Interesting "bullseye". 4 Sigma lenses and I have never experienced any issues on my former T6s or 6D2 (current) . Believe I have all of this stuff turned on too. Always did a bunch of research before buying another brand to use with my body.. However, I also have a Sgma Dock, so maybe that helped too.

Guess we'll need to hear if this is what he's seeing.

Re: Dark rings around JPEGs with Sigma lenses?

ebiggs1 — Thu, 07 May 2020 14:49:37 GMT

Rick,

It apparently happens on only certain Sigma lenses. Perhaps only under certain conditions too. I have never seen it either. I currently have five Sigma lenses. I have owned way more Siggy's but have cleared out the ones I will never use again.

Unless Sigma updates the FW of a lens I doubt the dock has any effect on this. Plus I never to very rarely ever shoot jpg any more.

Re: Dark rings around JPEGs with Sigma lenses?

wq9nsc — Thu, 07 May 2020 15:39:26 GMT

The only Sigma I have is the 50mm F1.4 "art" and it works fine with my 1DX series and 5DS R bodies. BUT I only shoot RAW files and I have all in camera processing turned off.

And I am very happy with the 50mm Sigma which has really changed my view of Sigma from when I first tried them back in my Canon EOS film camera days. It is very sharp with great contrast, I have zero complaints about its output quality and focus behavior. My Canon 50mm F1.4 was the only lens to fail in warranty and I had it repaired again out of warranty a few years later and when it died again I decided not to deal with a lens that was seldom used but had an AF assembly (internal flex cable issue) that apparently Canon cannot reliably repair.

The Canon 50 f1.4 must have been designed in the same era as an early 1990s Canon camcorder I owned which is the only truly lousy Canon product I have ever owned and after dealing with multiple service center repairs I finally built replacements for four troublesome printed circuit style ribbon cables inside that were complete garbage as manufacturerd. After my repair it was still working when I retired it 10 years ago after 10 years of solid service, prior to that it never functioned more than three months between visits to Canon service.

Rodger

Re: Dark rings around JPEGs with Sigma lenses?

ebiggs1 — Thu, 07 May 2020 21:18:38 GMT

Not that it is important to this thread but I did own the holy trinity of Sigma lens the 35mm (still have), the 50mm and the 85mm. All f1.4 Art models. None exhibited any dark rings in the photos. I have now replaced the 50mm and the 85mm with Canon's fantastic f1.2L lenses. There is no comparison. I kept the Siggy Art 35mil because I wanted to have at least one super sharp lens around.

Re: Dark rings around JPEGs with Sigma lenses?

ebiggs1 — Thu, 07 May 2020 21:23:08 GMT

"... I am very happy with the 50mm Sigma which has really changed my view of Sigma ..."

Rodger,

You need to try and/or buy the Sigma 120-300mm f/2.8 DG OS HSM Sports Lens. I'm tellin' ya. BTW, it is $500 off on sale right now.

Re: Dark rings around JPEGs with Sigma lenses?

Waddizzle — Thu, 07 May 2020 23:07:07 GMT

@ebiggs1 wrote:
"... I am very happy with the 50mm Sigma which has really changed my view of Sigma ..."

Rodger,
You need to try and/or buy the Sigma 120-300mm f/2.8 DG OS HSM Sports Lens. I'm tellin' ya. BTW, it is $500 off on sale right now.

It is tempting, that's for sure. But, seeing how I already have up to 100mm to 200mm f/2.8 covered with my EF 70-200 f/2.8L IS II USM, especially if I use the lens on a 7D Mark II, I do not see a big advantage when it comes covering that part focal range.

For now, I am still passing on a 120-300mm f/2.8. So far, I am very happy with a 70-200mm, on either a crop or full frame body. I would welcome and look forward to a 300mm f/2.8 or 400mm f/2.8 prime, instead.

Re: Dark rings around JPEGs with Sigma lenses?

wq9nsc — Thu, 07 May 2020 23:11:24 GMT

"Rodger,

You need to try and/or buy the Sigma 120-300mm f/2.8 DG OS HSM Sports Lens. I'm tellin' ya. BTW, it is $500 off on sale right now."

I hear you Ernie and it is tempting but I am not sure WHEN I will be shooting sports again because this COVID thing is going to be hanging on for the foreseeable future. I may be a "birder" by the time this is all over 😞

Rodger

Re: Dark rings around JPEGs with Sigma lenses?

Waddizzle — Thu, 07 May 2020 23:17:10 GMT

@wq9nsc wrote:
"Rodger,
You need to try and/or buy the Sigma 120-300mm f/2.8 DG OS HSM Sports Lens. I'm tellin' ya. BTW, it is $500 off on sale right now."

I hear you Ernie and it is tempting but I am not sure WHEN I will be shooting sports again because this COVID thing is going to be hanging on for the foreseeable future. I may be a "birder" by the time this is all over 😞

Rodger

Yeah, I have a couple of friends I grew up with, who are pro sports photographers. They have no idea when they will go back to their old roles, or even if the roles would be renewed at some future date.

Being independent contractors, they are having more problems drawing unemployment that the people who for an employer, when it comes to filing and collecting unemployment checks.

Re: Dark rings around JPEGs with Sigma lenses?

ebiggs1 — Fri, 08 May 2020 13:41:22 GMT

"... I am not sure WHEN I will be shooting sports again ..."

They are talking about all sports coming back sooner than later. They are going to need photographers more than ever if fans are not allowed. NCAA will do the same and I suspect high school varsity will too. You have an "in" so you could be the guy.

With any new gear, a lens, needs to have a get acquainted period. WHat an opportunity you have. Now is the time!

I have Sigma's 1.4x tel-con for mine. I hate tel-cons but I admit this lens handles it well or at least good enough. Yes it does suffer but not horribly. I have never used it for important stuff but again I got acquainted with using it.

Re: Dark rings around JPEGs with Sigma lenses?

haydentech — Sat, 28 Nov 2020 15:43:53 GMT

This has already been answered generally, but to be specific, you need to turn OFF the Peripheral Illumination Correction in the Lens Aberration Correction menu. The other Lens Aberration options can be kept ON without issue.