p.1 #3The A7RVI & Banding with LED Lighting & Electronic Shutter?
Daran wrote:
While I don't have the camera: better, but not good. The readout in ES is at about 1/60s and that is still in range of even AC induced flicker.
Yes, that is what I am expecting also. It would be good to hear what users' experiences are actually like in the real world for different types of LED lights and in different shooting situations.
The situations that matter the most to me personally are home LED lights and LED lights in public places like stores and museums.
I wonder if the camera is in enough hands to get feedback on this yet.
p.1 #4The A7RVI & Banding with LED Lighting & Electronic Shutter?
Any readout speed slower than the cycling rate of lights will produce banding. The closer this slower readout speed is to the light's cycling rate, the fewer the bands of light that will be visible. At 1/51, the a7rVI will exhibit banding in all artificial lighting scenarios including incandescent (non-LED lighting) - the only way to minimize this effect is in situations where the shutter speed can be reduced to the speed of the cycling light, which many solutions don't allow.
You can read about how banding manifests and how it relates to the cycling rate of light in the explainer section of my rolling-shutter readout project on GitHub:
p.1 #6The A7RVI & Banding with LED Lighting & Electronic Shutter?
The a7V would probably be a good comparison since it's been out longer and has a similar sensor readout speed. But at the end of the day if you have to take photos with LED lighting and can only use an electronic shutter, you're better off with an a1II, or ideally an a9III, which is the first camera to fully solve the LED banding issues due to its global shutter.
p.1 #7The A7RVI & Banding with LED Lighting & Electronic Shutter?
It's like gravity. Plenty of user experience already.
There are 2 sensor readout speeds for the A7RVI.
Both of them close enough to existing cameras that photos of banding due to LED lighting with those cameras can be substituted for the new camera.
p.1 #8The A7RVI & Banding with LED Lighting & Electronic Shutter?
My quick test suggests:
1/60th and slower ... subtle banding, not noticeable unless you look for it;
1/80th to 1/125th ... banding is visible but photos likely useable, depending on your requirements;
1/160th ... banding gets very strong, photo not useable;
1/200th and faster ... banding is terrible.
So 1/160th is where the photos fall off a cliff. But that's just one home LED bulb, so your results will vary depending on the lighting.