Strange artifacts on R6 when using Electronic Shutter

[Andrew D Brierley]

Hi Guys,

I was trying our the Electronic shutter yesterday and managed to get some good shot of Kookaburras thanks to the high speed, however, I am seeing some strange artifacts in the images. please see image to see what I am talking about.

Does anyone know what causes this and more importantly how do I prevent it.

I don't know if the same would happen in the same situation with mechanical shutter but I can say I have not seen this before.


Does anyone know what causes this and more importantly how do I prevent it.

 

[Kameratrollet]

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www.fredmiranda.com

 

[Andrew D Brierley]

https://www.fredmiranda.com/forum/topic/1642642/0

Thanks for the link, I did search but didn't really know what I was searching for, or rather what search terms to use.

Thanks for your help.

Andrew

 

[Greg23D]

Hi

the link goes to a forum discussing the effects of rolling shutter using electronic shutters.

just google rolling shutters and you’ll find all the info you need.



Greg

 

[R2D2]

Does anyone know what causes this

Electronic Shutter.

and more importantly how do I prevent it.

Mechanical Shutter.

I've seen the same thing...



[ATTACH alt=""Aliasing" along the wing edges "]3057732[/ATTACH]
"Aliasing" along the wing edges

It hasn't happened often to me, but it really depends on the type of shooting you're doing (ie close flying birds etc).

R2

--
Good judgment comes from experience.
Experience comes from bad judgment.

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[Karl_Guttag]

The term you are looking for it "Rolling Shutter." It is much more of a problem with electronic shutter.

With irregular movement like birds wings if the movement is in the "wrong direction at the wrong instant" you will get this effect. If you had regular movement like a drone propeller blade, you would see it all the time. The problem should be much less with electronic first curtain or full mechanical shutter, but you will get fewer frames per second.

The trade-off is that that you can burst at a higher rate and get many more chances of getting the best pose, but you will occasionally get the rolling shutter effect.

Professional bird photographer Jan Wegener seems to feel the trade-off is worth it (at least back in 2020):

Hi Guys,

I was trying our the Electronic shutter yesterday and managed to get some good shot of Kookaburras thanks to the high speed, however, I am seeing some strange artifacts in the images. please see image to see what I am talking about.

Does anyone know what causes this and more importantly how do I prevent it.

I don't know if the same would happen in the same situation with mechanical shutter but I can say I have not seen this before.


Does anyone know what causes this and more importantly how do I prevent it.

 

[BirdShooter7]

I’ve definitely seen this effect and though I’ve referred to it as rolling shutter, I’m not sure if that is completely accurate. I think part of the problem is the way the R6 sensor reads out. I think it’s something like 6 lines at a time or something similar giving that stepped effect.

 

[John Sheehy]

I’ve definitely seen this effect and though I’ve referred to it as rolling shutter, I’m not sure if that is completely accurate. I think part of the problem is the way the R6 sensor reads out. I think it’s something like 6 lines at a time or something similar giving that stepped effect.

I have heard of steps for the Sony A9 cameras, but not for any Canon.

It's easy enough to test; just take some shots while quickly sweeping a long lens horizontally along a fence or rails or such and examine the results closely.

 

[John Sheehy]

Hi Guys,

I was trying our the Electronic shutter yesterday and managed to get some good shot of Kookaburras thanks to the high speed, however, I am seeing some strange artifacts in the images. please see image to see what I am talking about.

Does anyone know what causes this and more importantly how do I prevent it.

I don't know if the same would happen in the same situation with mechanical shutter but I can say I have not seen this before.


Does anyone know what causes this and more importantly how do I prevent it.

That's just an immutable property of the R6' sensor readout in e-shutter mode. It does not have an especially fast rolling shutter in e-shutter mode, many times slower than the mechanical shutter.

With Canon ILCs, the R5 has the fastest rolling e-shutter (16ms), and the R5 still gives 17.3MP in crop mode, which has an effective 10ms rolling shutter. I think that the R6 is something like 25 to 35ms for the full frame, and ~62.5% of that for crop mode. mechanical rolling shutters tend to only be about 3ms to 5ms.



--
Beware of correct answers to wrong questions.
John

http://www.pbase.com/image/55384958.jpg

 

[BirdShooter7]

I’ve definitely seen this effect and though I’ve referred to it as rolling shutter, I’m not sure if that is completely accurate. I think part of the problem is the way the R6 sensor reads out. I think it’s something like 6 lines at a time or something similar giving that stepped effect.

I have heard of steps for the Sony A9 cameras, but not for any Canon.

It's easy enough to test; just take some shots while quickly sweeping a long lens horizontally along a fence or rails or such and examine the results closely.

 

[Dan W]

Rolling shutter. An issue that can show up with electronic shutter and moving subjects. The only real way to prevent this is use the mechanical shutter.