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Home → Cameras and Lenses

The Reality Behind Nikon Z Banding Issues

By Spencer Cox 77 Comments
Last Updated On February 22, 2019

One of the big headlines when the first Nikon Z6 and Z7 tests appeared online is that they exhibited a pattern of “banding,” or line pattern noise, when recovering shadows too much. Although most reviewers were quick to point out that 5-6 stops of shadow recovery is excessive, this issue nonetheless drew a lot of attention. But now that we have performed complete dynamic range tests on today’s mirrorless cameras at Photography Life, my question is… why?

Let’s start with an example. The following image has been underexposed by six stops at base ISO 100. I opened it in RawDigger, then exported as a TIFF and recovered the image with the “Exposure” slider in Capture One. As you can see, there are indeed visible lines of noise, although only in certain parts of the image. I’ve circled the most obvious patterns:

EOSR-ISO100-6UNDER With Circles
Canon EOS R + RF24-105mm F4 L IS USM @ 58mm, ISO 100, 1/160, f/8.0

However, just because the Nikon Z6 has these patterns of noise doesn’t mean that…

Wait.

Ah, sorry – it looks like the image above isn’t from the Nikon Z6, but from the Canon EOS R. (UPDATE: This is from the older firmware 1.0.0 on the EOS R. The new 1.1.0 version is actually much worse in terms of banding, as we explain in our new article.)

Okay, here’s the image I meant to show. Once again, I underexposed this photo by six stops, recovered it in RawDigger and Capture One, and then circled the offending noise. Note that this is a 100% crop:

A7III-ISO100-6UNDER With Circles
ILCE-7M3 + FE 28-70mm F3.5-5.6 OSS @ 55mm, ISO 100, 1/160, f/8.0

This time, there is noticeably less line pattern noise, although it’s still visi—

Oh, that’s the Sony A7 III. My bad. 

All right, I’m kidding around. But the two examples above go to show that line pattern noise isn’t a Nikon-only factor. The Canon EOS R has a decent amount, and the Sony A7 III has a bit as well. I’ll cut out the act now and show how the actual Z6 sample image compares:

NIKON-Z6-ISO100-6UNDER With Circles
NIKON Z6 + 24-120mm f/4 @ 58mm, ISO 100, 1/160, f/8.0

No tricks, that’s the Z6 image. The most noticeable thing to me is that it appears greener than the other photos – but that’s something you can correct with a small white balance adjustment. In terms of line pattern noise, though, it has perhaps a slight bit more than the A7 III, and definitely less than the Canon EOS R. Certainly not what you would expect based on the articles online.

Just for good measure, here is a sample image from the camera that sparked this discussion, the Nikon Z7:

NIKON-Z7-ISO64-6UNDER With Circles
NIKON Z7 + 24-120mm f/4 @ 58mm, ISO 64, 1/100, f/8.0

I’d say the Z7 is the best of the lot. This is largely due to the lower base ISO of 64; the other cameras here would likely show similar performance if they offered such a low native ISO. Although you can see a bit of line pattern noise in some of the gray color swatches on the right, it is far from objectionable.

Here are the same four images one more time so that you can click and compare without the circles covering them. Note that I downsampled the higher-resolution photos so that they all appear the same size for comparison:

EOSR-ISO100-6UNDER
Canon EOS R + RF24-105mm F4 L IS USM @ 58mm, ISO 100, 1/160, f/8.0
A7III-ISO100-6UNDER
ILCE-7M3 + FE 28-70mm F3.5-5.6 OSS @ 55mm, ISO 100, 1/160, f/8.0
NIKON-Z6-ISO100-6UNDER
NIKON Z6 + 24-120mm f/4 @ 58mm, ISO 100, 1/160, f/8.0
NIKON-Z7-ISO64-6UNDER
NIKON Z7 + 24-120mm f/4 @ 58mm, ISO 64, 1/100, f/8.0

I definitely don’t begrudge initial reviewers for writing about the Z6’s and Z7’s line pattern noise when the shadows are boosted too much. It might not be the most real-world of tests, but part of this job is figuring out how these cameras fundamentally work, and—

Cough, cough! Who underexposes images by six stops?? Ahem.

Sorry, something in my throat.

Anyway, the Z6 and Z7 certainly aren’t perfect in terms of line pattern noise. However, I can’t help but feel some surprise that this issue became so strongly associated with them, yet is hardly mentioned in discussions of other mirrorless options today. After all, the root cause of these banding issues is generally due to on-sensor phase detection pixels, which are part of the autofocus system in nearly all modern mirrorless cameras – making this more than just a single company’s problem.

So, how did it happen that the Z cameras took most of the heat for this type of noise? A large part of it is due to the trickle-down nature of camera reviews. One or two big websites publish a set of high-quality tests; several others copy the pro/con page and hammer out a watered-down version of the original review. You can see obvious examples on any website that lists “banding” as a negative for the Z6 or Z7, yet not in their review of the EOS R. It means the website most likely did not test these cameras side by side, but simply took existing information and repackaged it with a few unique sample images. It’s the quick, easy way to write a review, and I’m guessing you’ll see more and more of them in the coming years.

That doesn’t mean it is a bad idea to read about small differences like this, but you also shouldn’t take everything you hear about cameras today at face value. Look at sample images for yourself, and try to figure out whether you’ll see any of these issues in your own images. At least in the case of line pattern noise, you almost certainly won’t; we’ve taken thousands of photos with all these cameras and never once seen the issue in real-world shooting. In short, there are many more important things to care about when buying a camera today, like whether it was manufactured in Thailand or Japan, and what color the camera is.

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Filed Under: Cameras and Lenses Tagged With: Mirrorless, Noise, Banding, Sony A7 III, Nikon Z6, Nikon Z7, Canon EOS R

About Spencer Cox

I'm Spencer Cox, a landscape photographer better known for my macro photography! My photos have been displayed in galleries worldwide, including the Smithsonian Museum of Natural History and exhibitions in London, Malta, Siena, and Beijing. These days I'm active on Instagram and YouTube.

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Chris Newman
Chris Newman
March 21, 2019 10:49 am

Thank you for pointing out that the Sony A7 III shows line pattern noise, and reminding us that Canon’s sensors for the last several years generally have inferior dynamic range at low ISOs than their competitors. But “Cough, cough! Who underexposes images by six stops?? Ahem.” seems to imply there is no benefit in high dynamic range sensors, which I can’t agree with. Several years ago in Yosemite we were on the side of a steep valley, shaded from the afternoon sun by the ridge above. The valley bottom was a forest of dark conifers, but in the valley mouth was a vista with a waterfall in full sunshine. Then using a Nikon D90, I took my usual bracketed set, noticed the highlight warning flashing on the monitor for the waterfall and snow, reduced the exposure compensation, saw the highlight warning was still flashing, etc, and eventually lost the warning with -4EV exposure compensation! In the JPEG, the forest formed a solid black mass. I was delighted Photoshop Elements’ Adobe Camera Raw was able to recover significant detail, but would have liked to have done much better. I guess trying to retain colour in a setting sun within a landscape could lead to even more extreme dynamic range.
As for Nasim’s “ if a scene has that much dynamic range, most of us would be doing bracketing for HDR or luminosity masking anyway”, those Yosemite shots led me to try various free HDR programs, expecting to find something that would do a better job, but none were able to align the hand-held Yosemite shots. No doubt a better HDR program would have got the result I wanted. I’m sure HDR is a great work-around when your camera lacks the dynamic range to record what you can see in an extreme high-contrast scene, but I’d far rather have a camera that could capture enough detail in a single exposure for me to lighten the shadows to my taste when processing the image.
Perhaps banding should be only a minor issue if deciding whether to buy a Z6 or Z7 or not, but they’d be better cameras if they offered the cleaner, more usable dynamic range of the D750 and D850 (although I admit that the conifer foliage in the dark areas of my Yosemite shot would probably have camouflaged banding effectively). I hope reviewers will continue to publicise weaknesses such as these, to influence the manufacturers to try to resolve them. If it isn’t possible to avoid banding from on-sensor phase detection pixels through improvements to the in-camera image processors, perhaps other manufacturers should follow Canon’s route of dual-pixel AF.

Chris

2
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David Marquez
David Marquez
November 24, 2019 7:52 pm

Thank you for fact-checking this and the excellent humor. Now I feel more confident that I am sticking with Nikon and when my Nikon D750 dies I’ll move to a mirrorless Nikon :).

1
Reply
Tobias
Tobias
February 25, 2019 12:46 am

Fool me once shame on you, fool me twice shame on me. Great article, really enjoyed it. :D

1
Reply
Vernon
Vernon
February 23, 2019 5:31 pm

I can’t help but feel that for some reason, unknown to me, there is currently an online bias against Nikon among reviewers, and others. I see this also in online forums, even those dedicated to the Nikon Z cameras. I think some Nikon haters simply go onto these forums to spread their hate. I may be wrong, but I have seen too much of it to simply take it for honest appraisals. I wrote to a longtime reviewer and camera guide author, asking him about this ‘so-called’ banding issue, and his reply was much like yours. He felt it is a big todo about nothing but the ordinary, true of all mirrorless that depend on the sensor taking on a lot of additional responsibilities. It will be overcome by all camera makers over time. But still, we have the best cameras today, DSLR and mirrorless, that we ever had. And the Z cameras are top performers. Thanks for your honest article. Much appreciated.

1
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George Charpentier
George Charpentier
February 23, 2019 3:08 pm

Anyone who needs to underexpose by 5 to 6 stops to find a problem, has a problem. Does anyone actually use a photo that underexposed? Thank you for your cheeky introduction, showing that other camera makers have similar issues, which are ignored by other reviewers. This site is my go-to for camera reviews and other photography-related matters. I appreciate your balanced approach very much.

1
Reply
Andy Laird
Andy Laird
February 23, 2019 6:14 am

Perhaps we should stop calling it a ‘banding problem’ and call it an under-exposing result! I have just put my Sony a7r III on the market after purchasing my Nikon Z7

They both produce excellent images but I simply preferred the way my Nikon Z7 worked for my type of photography! Everything today seems to be focused on pixel peeking and not the subject, composition and light which is what the art of photography is about! cough cough!!

Excellent Post.

1
Reply
Daneil Lord
Daneil Lord
February 22, 2019 6:18 pm

I bought a Z 7 last September as finally the mirrorless camera as the one that finally had all the major and even minor features I wanted. I have yet to be disappointed…at all. No internet site is going to convince me to disbelieve my own experience.
I view a lot of the internet reviews as always having the potential to be unvetted, sponsored “fake news” because most of the sites that offer them are easily corrupted by money and vendors have the most to spend. This is exactly why I don’t use social media because their purpose is commercial no social.
Your site seems to be a refreshing exception. Thank you for “myth busting” the “fake news” supported by vendor bribes.
I guess, no proof but my understanding of human nature and competition, is that all the major mirrorless offerings are of high quality with minor differences and most users could use any of them equally well.
I’ve spent enough time on this; I think I’ll go out and take some picture because that is what it is all about.

1
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Martin Norden
Martin Norden
Reply to  Daneil Lord
February 23, 2019 12:28 am

+1, my Z7 is working just fine, if anything it is the numpty behind the camera (me) that causes the problems not the camera. When it gets to the point that I am underexposing images by 6 stops and then trying to make them look good in PP then maybe it is time to put the camera up for sale, collect my zimmer frame and toddle off to the photographers rest home.

Now off to take some pictures.

0
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Bijan K Choudhury
Bijan K Choudhury
February 22, 2019 8:28 am

This is is a non issue for me as it involves recovering 6 stops. Something I will not encounter regularly.
But your article is very welcome and cautions us not to believe everything we read and hear …
And it was very entertaining also … with bits of suspense and drama …

1
Reply
Michael Sumaquial
Michael Sumaquial
January 17, 2021 10:19 am

I honestly believe that Sony is promoting the spread of misinformation like this through their marketing arm to boost their sales and minimize their competitors.

0
Reply
Steve
Steve
December 6, 2020 10:07 am

Amen. Well said. I grew tired of hearing this complaint. I’ve been shooting with a Z7 for nigh on 2 years and about 10,000 images. Never once have I noticed any banding. Then again, I never grossly under-expose images. But I do recover a lot of shadows that are considerably under-exposed. Again, no banding, and very little noise. The image quality from the Z7 is simply fantastic.

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