A9 & Pattern/Banding Noise at ISO 100 ??

Huh, What is this now (click)? :

https://diglloyd.com/blog/2017/20170525_2056-Sony_A9-PatternNoise-at-ISO100.html

Lloyd wrote:

(quote)

"Obvious noise at ISO 100 on a 24 megapixel sensor is unexpected and very disappointing, but that’s exactly what I found with the Sony A9 without even having to go looking—one of the first few one-off shots I made.

I noticed some unexpected streaking in an image with a good exposure at ISO 100. The red channel is overlaid with horizontal lines/streaks in 12-pixel-high bands..."

Well... I'm not diglloyd.com's paying subscriber, so I can't see the whole article, but this really doesn't sound too good...

Has anyone here read the whole article and could tell us more about it?

regards,

Ari

fredmiranda forum (click)

Lloyd wrote:

"Obvious noise at ISO 100 on a 24 megapixel sensor is unexpected and very disappointing, but that’s exactly what I found with the Sony A9 without even having to go looking—one of the first few one-off shots I made.

Well... I'm not diglloyd.com's paying subscriber

He might be right, but this sounds a lot like click-bait to me. His first few shots, and you have to pay...riiiiight. Normally takes me a little time to get good images out of my camera's. If making these type of claims reliably it should say "one of my first few shots, which I then recreated using XYZ. Let's see where this goes, but for now my money with the existing (non) evidence and earlier reviews is a little like Harry Potter.

Hugo600si wrote:

Lloyd wrote:

"Obvious noise at ISO 100 on a 24 megapixel sensor is unexpected and very disappointing, but that’s exactly what I found with the Sony A9 without even having to go looking—one of the first few one-off shots I made.

Well... I'm not diglloyd.com's paying subscriber

He might be right, but this sounds a lot like click-bait to me.

I think, I agree with you.

Actually internet is already full of A9 raw files (click for example) , and no one has noticed this "fatal" phenomenon before Lloyd...C'mon...

His first few shots, and you have to pay...riiiiight. Normally takes me a little time to get good images out of my camera's. If making these type of claims reliably it should say "one of my first few shots, which I then recreated using XYZ. Let's see where this goes, but for now my money with the existing (non) evidence and earlier reviews is a little like Harry Potter.

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Ari Aikomus wrote:

Huh, What is this now (click)? :

https://diglloyd.com/blog/2017/20170525_2056-Sony_A9-PatternNoise-at-ISO100.html

Lloyd wrote:

(quote)

"Obvious noise at ISO 100 on a 24 megapixel sensor is unexpected and very disappointing, but that’s exactly what I found with the Sony A9 without even having to go looking—one of the first few one-off shots I made.

I noticed some unexpected streaking in an image with a good exposure at ISO 100. The red channel is overlaid with horizontal lines/streaks in 12-pixel-high bands..."

Well... I'm not diglloyd.com's paying subscriber, so I can't see the whole article, but this really doesn't sound too good...

Has anyone here read the whole article and could tell us more about it?

regards,

Ari

That's lloyd seeing things that aren't there again. How many lenses has he returned that were perfectly fine. He shows images, describes what he thinks he sees yet no one else can see it. Seriously, enlarge his sample image. I see nothing unusual there.

His base is mostly DSLR users and he needs to keep them happy

janist74 wrote:

IMO just another click bait. Maybe I see something like a pattern in the Dpreview iso100+6stops pushed images, but if that`s it, then I can live with it.

+1

BTW - is there any diglloyd's subscriber ?

I'm not going to pay for that order, but if anyone here has seen what h*ll he is talking about - please, do us a favor and tell us more ... Maybe a couple of screenshot would be nice too

cheers,

Ari

nomnomnom wrote:

Ari Aikomus wrote:

Huh, What is this now (click)? :

https://diglloyd.com/blog/2017/20170525_2056-Sony_A9-PatternNoise-at-ISO100.html

Lloyd wrote:

(quote)

"Obvious noise at ISO 100 on a 24 megapixel sensor is unexpected and very disappointing, but that’s exactly what I found with the Sony A9 without even having to go looking—one of the first few one-off shots I made.

I noticed some unexpected streaking in an image with a good exposure at ISO 100. The red channel is overlaid with horizontal lines/streaks in 12-pixel-high bands..."

Well... I'm not diglloyd.com's paying subscriber, so I can't see the whole article, but this really doesn't sound too good...

Has anyone here read the whole article and could tell us more about it?

regards,

Ari

Can someone explain what am I seeing here? I thought banding is when there is a gradient of change on the photo. I cant find it here. Is it the flower that is changing? I dont get it, anyone explain?

Banding isn't the term I would use, "striping" seems more accurate.

I have no opinion on Lloyd's statement, because I'm not paying to read it and there's no raw files to look at.

TBH, if someone is a person of science, they should strive to test multiple times across multiple bodies in repeatable conditions and in varying environments. In the rush to be the first one to peg a flaw on the camera, he looks sloppy.

It's not unique to Lloyd, though. A lot of people seem to do that. In the interest of science flaws and issues should be exposed, but I prefer a more rigorous method with documented steps and repeatable results open for dissemination amongst others so that a consensus can be reached.

Here's the link to the banding noise:

https://diglloyd.com/blog/2017/images/2017-0525-_DGL0011-crop.jpg

There might be something to what Lloyd's saying. I have occasionally seen this banding noise pattern in other Sony cameras. I remember that it happened a few times with the a77II back when we had it. It was in a very high contrast backlit scene, similar to this:

Definitely was not silent shutter since that camera did not have silent shutter mode.

I am not technical enough to speculate how it happens. But I have seen the behavior previously when pixel peeping.

I do see the banding, and I recognize a similar type of banding noise in bright backlit conditions previously.

Here's a DPReview sample image that shows the same behavior in the flare just underneath the sun:

Could it be sensor reflections?

Not easy to see unless pixel peeping, but it is a detriment.

Tuloom wrote:

Roses wrote:

Could it be sensor reflections?

No, it's the same banding as the NEX-6, A6000, Some early Nikons....

Also most prevalent in veiling flare situations.

I hadn't heard about it, but I did see the issue with the a77II that we had. Looking through some older DPReview sample images, I see it here for the a6000.

I'll have to try to reproduce this with our copy of the a9. If it does happen that would put a damper on things, because we enjoy backlit sunset photos a lot.