DPReview.com is closing April 10th - Find out more

R6 Horrid Newton Rings and Pink artefacts error

Started May 25, 2021 | Discussions
flunk New Member • Posts: 1
R6 Horrid Newton Rings and Pink artefacts error

Any ideas of fixing and preventing this error? Is the camera and lens at fault?

The grey jacket is showing newton rings and horrible artefacts across the three photos taken in this set.

EOS R6 - latest firmware

RF 24-70mm F2.8L IS USM

Canon EOS R6 Canon RF 24-70mm F2.8L IS USM
If you believe there are incorrect tags, please send us this post using our feedback form.
Mako2011
MOD Mako2011 Forum Pro • Posts: 28,706
Normal Moire
3

flunk wrote:

Any ideas of fixing and preventing this error? Is the camera and lens at fault?

The grey jacket is showing newton rings and horrible artefacts across the three photos taken in this set.

To be expected given the subject and settings

https://photographylife.com/what-is-moire

-- hide signature --

My opinions are my own and not those of DPR or its administration. They carry no 'special' value (except to me and Lacie of course)

Steve Balcombe Forum Pro • Posts: 15,571
Re: R6 Horrid Newton Rings and Pink artefacts error

flunk wrote:

Any ideas of fixing and preventing this error? Is the camera and lens at fault?

The grey jacket is showing newton rings and horrible artefacts across the three photos taken in this set.

Wow, that's unusually bad. Have you done anything when processing the image to accentuate the colours? If you did, go back to the original before fixing the moiré as below, then repeat your colour adjustments as necessary.

An effective fix is to use the Camera Raw filter in Photoshop. Select an adjustment brush, and you will find "moiré adjustment" at the bottom of the sliders. Paint over the affected areas.

bigshledge Contributing Member • Posts: 596
Re: R6 Horrid Newton Rings and Pink artefacts error

Welcome to digital photography.

 bigshledge's gear list:bigshledge's gear list
Canon EOS R6 Canon EF 100mm f/2.8 Macro USM Canon EF 8-15mm f/4L Fisheye USM Canon EF 100-400mm F4.5-5.6L IS II Canon RF 28-70mm F2L USM +1 more
Karl_Guttag Senior Member • Posts: 1,884
Re: R6 Horrid Newton Rings and Pink artefacts error
4

That is Moire and not Newton Rings.

Hopefully, you shot in RAW (or cRAW). The best program for fixing them appears to be DXO PL4 with DeepPrime with the moire option). It appears to use a sophisticated (AI?) algorithm that can get rid of moire without losing detail, but it has to have the RAW file.

DXO also has a new RAW converter independent of PL4 but I don't know how it works are moire.

To fix moire well, you need to start with the RAW file. These more sophisticated conversion programs need the raw samples of the individual color filters (i.e. RAW). Once the color filter samples are converted to "pixels" critical information is lost and all you can do is desaturate and blur the image with some hope of getting some of it back.

You can download DXO PL4 for free for a trial period. It it amazing what it can do with RAW files for both noise and moire.

flunk wrote:

Any ideas of fixing and preventing this error? Is the camera and lens at fault?

The grey jacket is showing newton rings and horrible artefacts across the three photos taken in this set.

EOS R6 - latest firmware

RF 24-70mm F2.8L IS USM

 Karl_Guttag's gear list:Karl_Guttag's gear list
Canon EOS R5 Canon RF 15-35mm F2.8L IS USM Canon RF 24-70mm F2.8L IS USM Canon RF 70-200mm F2.8L IS USM Canon RF 24-240mm F4-6.3 +14 more
Larawanista
Larawanista Veteran Member • Posts: 4,736
Re: R6 Horrid Newton Rings and Pink artefacts error

Karl_Guttag wrote:

That is Moire and not Newton Rings.

Hopefully, you shot in RAW (or cRAW). The best program for fixing them appears to be DXO PL4 with DeepPrime with the moire option). It appears to use a sophisticated (AI?) algorithm that can get rid of moire without losing detail, but it has to have the RAW file.

DXO also has a new RAW converter independent of PL4 but I don't know how it works are moire.

To fix moire well, you need to start with the RAW file. These more sophisticated conversion programs need the raw samples of the individual color filters (i.e. RAW). Once the color filter samples are converted to "pixels" critical information is lost and all you can do is desaturate and blur the image with some hope of getting some of it back.

You can download DXO PL4 for free for a trial period. It it amazing what it can do with RAW files for both noise and moire.

flunk wrote:

Any ideas of fixing and preventing this error? Is the camera and lens at fault?

The grey jacket is showing newton rings and horrible artefacts across the three photos taken in this set.

EOS R6 - latest firmware

RF 24-70mm F2.8L IS USM

FYI, DxO Pure Raw which you referenced above is superb. On my desktop with proper specs, I can 45-50 R6 or the 32mp M6II raw files in about 23-25 mins.

-- hide signature --

"Photography is therapeutic."
https://500px.com/joshcruzphotos

 Larawanista's gear list:Larawanista's gear list
Canon EOS M3 Canon EOS R Canon EOS RP Canon EOS R6 Canon EF 100-400mm f/4.5-5.6L IS USM +10 more
Karl_Guttag Senior Member • Posts: 1,884
IF and only IF you don't have RAW files
3

If you don't have raw files, with some work the image can be improved a lot but will always have some moire problems at least in luminance.

The quickest thing you could do is to create a color layer and then using the brush tool in photoshop, select the color of the suit (you might want to pick the color multiple times for different areas of the suit) and brush it in. As I wrote above, this does a good jobe on the color but the luma is still bad and I don't see how you could get rid of the luma moire. To get rid of that luma Moire, I hope you have the RAW file. It only took me a few minutes to make a big improvement in the color (I was not overly careful and only picked one color for the whole suit -- this was a test).

Starting with a blank COLOR layer and then picking the suit color and brushing it in

Karl_Guttag wrote:

That is Moire and not Newton Rings.

Hopefully, you shot in RAW (or cRAW). The best program for fixing them appears to be DXO PL4 with DeepPrime with the moire option). It appears to use a sophisticated (AI?) algorithm that can get rid of moire without losing detail, but it has to have the RAW file.

DXO also has a new RAW converter independent of PL4 but I don't know how it works are moire.

To fix moire well, you need to start with the RAW file. These more sophisticated conversion programs need the raw samples of the individual color filters (i.e. RAW). Once the color filter samples are converted to "pixels" critical information is lost and all you can do is desaturate and blur the image with some hope of getting some of it back.

You can download DXO PL4 for free for a trial period. It it amazing what it can do with RAW files for both noise and moire.

flunk wrote:

Any ideas of fixing and preventing this error? Is the camera and lens at fault?

The grey jacket is showing newton rings and horrible artefacts across the three photos taken in this set.

EOS R6 - latest firmware

RF 24-70mm F2.8L IS USM

 Karl_Guttag's gear list:Karl_Guttag's gear list
Canon EOS R5 Canon RF 15-35mm F2.8L IS USM Canon RF 24-70mm F2.8L IS USM Canon RF 70-200mm F2.8L IS USM Canon RF 24-240mm F4-6.3 +14 more
tonysabbath
tonysabbath New Member • Posts: 16
Re: R6 Horrid Newton Rings and Pink artefacts error
1

Yes I was shocked how bad it was when I shot a similar colour suit at a wedding 3 weeks ago. Worst Ive seen from any of the camera's Ive owned. But I still love my R6. Its not your lens. Shooting at different focal lengths can help but will be unavoidable sometimes. Have to fix in Post.

 tonysabbath's gear list:tonysabbath's gear list
Canon EOS 6D Canon EOS R6 Canon EF 100mm f/2.8 Macro USM Canon EF 16-35mm F4L IS USM Tamron SP 70-200 F2.8 G2 +3 more
Karl_Guttag Senior Member • Posts: 1,884
Re: R6 Horrid Newton Rings and Pink artefacts error
1

tonysabbath wrote:

Yes I was shocked how bad it was when I shot a similar colour suit at a wedding 3 weeks ago. Worst Ive seen from any of the camera's Ive owned. But I still love my R6. Its not your lens. Shooting at different focal lengths can help but will be unavoidable sometimes. Have to fix in Post.

Have you tried DXO PL4 DeepPrime on a RAW file?

 Karl_Guttag's gear list:Karl_Guttag's gear list
Canon EOS R5 Canon RF 15-35mm F2.8L IS USM Canon RF 24-70mm F2.8L IS USM Canon RF 70-200mm F2.8L IS USM Canon RF 24-240mm F4-6.3 +14 more
QSMcDraw
QSMcDraw Regular Member • Posts: 309
Re: R6 Horrid Newton Rings and Pink artefacts error
1

Just one moire reason to avoid weddings.  Fortunately, they are one of the few places people still wear fabric like this.

M J Valentine Senior Member • Posts: 1,293
Re: R6 Horrid Newton Rings and Pink artefacts error

flunk wrote:

Any ideas of fixing and preventing this error? Is the camera and lens at fault?

The grey jacket is showing newton rings and horrible artefacts across the three photos taken in this set.

EOS R6 - latest firmware

RF 24-70mm F2.8L IS USM

I've noticed a similar problem with the R6 and bricks at long distance. I suspect that the higher resolution of the R5 is part of the explanation as to why the R5 isn't so badly affected.

-- hide signature --

Don't be dense, it's lens not 'lense'!

tonysabbath
tonysabbath New Member • Posts: 16
Re: R6 Horrid Newton Rings and Pink artefacts error

Karl_Guttag wrote:

tonysabbath wrote:

Yes I was shocked how bad it was when I shot a similar colour suit at a wedding 3 weeks ago. Worst Ive seen from any of the camera's Ive owned. But I still love my R6. Its not your lens. Shooting at different focal lengths can help but will be unavoidable sometimes. Have to fix in Post.

Have you tried DXO PL4 DeepPrime on a RAW file?

I have only trialed the new DXO PureRaw and it doesn't help with it. I either have to use a colour mask or Adobe Raw has a denoise option that helped.

 tonysabbath's gear list:tonysabbath's gear list
Canon EOS 6D Canon EOS R6 Canon EF 100mm f/2.8 Macro USM Canon EF 16-35mm F4L IS USM Tamron SP 70-200 F2.8 G2 +3 more
medon78
medon78 Contributing Member • Posts: 697
Re: R6 Horrid Newton Rings and Pink artefacts error

flunk wrote:

... Is the camera and lens at fault?

... yes.

Lens is super-sharp at f/4, and the camera's AF chose to put focus exactly on the gent's jacket.

Add a weak AA filter into the mix, and...

Must be a reason why Canon used much stronger AA filters in the past.

 medon78's gear list:medon78's gear list
Fujifilm FinePix X100 Canon PowerShot S110 Olympus E-M1 II Nikon Z6 II Olympus M.Zuiko Digital 45mm F1.8 +11 more
Keyboard shortcuts:
FForum MMy threads