Electronic Shutter Horizonatal Banding

Hi all, I know about the warping resulting from non-stacked sensors with the electronic shutter, but I thought banding only occurs with artificial light sources.

The image below has been denoised but the bands are present on the original.

Is this expected?

I see you haven't gotten any response to this. Could you post a link to a RAW so I can see it for myself?

Did you shoot raw or JPEG? If you shot raw, a link to the raw file would help. this looks sort of like JPEG artifacts to me, but maybe I'm off base. There seems to be no banding at all in the background on either side of the areas you circled.

AntonLargiader wrote in post #19556655
I see you haven't gotten any response to this. Could you post a link to a RAW so I can see it for myself?

paddler4 wrote in post #19556930
Did you shoot raw or JPEG? If you shot raw, a link to the raw file would help. this looks sort of like JPEG artifacts to me, but maybe I'm off base. There seems to be no banding at all in the background on either side of the areas you circled.

Thanks both.

Yes, I shot RAW, here's the link:
https://drive.google.c​om …MxqDQ/view?usp=​drive_link

Thanks. Yes, I sure see it in my DPP also. It must be some artifact of the electronic shutter. I have nothing to suggest.

I see it in Adobe Camera Raw also. However, it doesn't look like banding to me. It is completely restricted to two small areas in moving wings. If it were banding, I would expect it in the background also. I'm puzzled.

OK, I think you are seeing rolling shutter distortion, cause by the subject (or part thereof) moving in the same direction as the scanning, so that the scans constantly repeat the same pattern. Usually there isn't enough detail in the subject to get this and you usually just get a stretch, shrink or bend but the feather detail isn't a good match for this so you get repetition in a way that almost produced moire. It takes the right pattern and the right motion, and I suppose those areas of the image had it.

That's my story.

AntonLargiader wrote in post #19557040
OK, I think you are seeing rolling shutter distortion, cause by the subject (or part thereof) moving in the same direction as the scanning, so that the scans constantly repeat the same pattern. Usually there isn't enough detail in the subject to get this and you usually just get a stretch, shrink or bend but the feather detail isn't a good match for this so you get repetition in a way that almost produced moire. It takes the right pattern and the right motion, and I suppose those areas of the image had it.

That's my story.

Maybe so. This is all new to me. But wouldn't rolling shutter warp the entire wing, not just create little lines? See the example here: https://photographylif​e.com …l-electronic-shutter-efcs.

I'm new to electronic shutters, so I'm grasping at straws here.

I think there's a good chance that whole wing IS warped, but you have no frame of reference for what unwarped is. It's naturally a somewhat curved object. But only certain parts have a pattern that creates a problem. A solid color object will appear stretched, but an object with 5mm spaced lines, moving at 5mm/millisecond, and the sensor is being scanned at 5mm (on the subject) per millisecond... you will get a repeating line.

Thanks for all the input. I agree on the likely suggestions for what's causing this. It does seem to be caused by the direction of travel and/or direction of the textures of the feathers conflicting with the direction of travel of the shutter.

I just would have expected some discussion and documentation on this online, we mainly hear about the warping.

I'll continue to monitor my shots and see how often it happens.