Banding on Z9

vtpeters wrote:

MCLV wrote:

As I described here https://www.dpreview.com/forums/post/65887363 , using mechanical shutter will blur the banding. For f/2.8 and assuming shutter location 4 mm in front of the sensor plane we get a diameter of light cone of 4 mm / 2.8 = approximately 1.4 mm. Therefore, blurring caused by mechanical shutter would be roughly 1.4 mm / 24 mm = 5.8% of image height and 1.4 mm / 24 mm * 2000 = 117 pixels of the original image. Hence, I simulated how the image would look if a mechanical shutter was used by applying a linear blur of 117 pixels in vertical direction. I then applied layer mask around Yngwie, so he is not completely blurry. You can see results below.

Original - Electronic shutter

Simulated mechanical shutter at f/2.8

Looks good to me. Thanks for explaining and sharing.

I have a question about the description of you solution...
You describe that you "assuming shutter location 4 mm in front of the sensor plane". But the Z9 has no (mechanical) shutter. The only shutter present is part of the sensor (in a way) and as such located ON the sensor plane. But I could be wrong, 'cause I am not familiar with sensor architecture apart from what Thom Hogan has described in his book on the Z9 (and I probably have to read that part of the book more thoroughly.

No, Z9 doesn't have mechanical shutter which would blur the banding. I was trying to simulate how the shot would have looked like if it was taken with Z7, for example. And for that purpose, I tried to estimate how much blur should I apply.