Sony A7S3 rolling shutter

Dpreview has been mentioning it in recent cameras, but I don't see one in their review for this camera.

Maybe since Chris and Jordan have joined, things have changed.

https://www.bing.com/search?q=sony+a7s+iii+readout

I'd stick with top to bottom. My Sony ZV-E10 is such, but is around 23-24 in GF.

I think a test would be in your pan - does the top lead and the bottom follow?

Testing was very helpful to me. I wanted to know the Jello Effect distortions and how they might affect high speed videos of tennis strokes.

For example,

https://www.dpreview.com/forums/post/64078385

See Vimeo video of the disc with white line. To single frame on Vimeo hold down the SHIFT KEY and use the ARROW KEYS.

For years, some golfer's believed that the clubs bent during golf swings!

I used a cast aluminum sanding disc, 6" dia. , to show a rotating line in a high speed video. I also took a few high resolution stills of a ceiling fan blade. The camera was looking straight up at the fan. My camera had an iris leaf shutter that has a much different exposure pattern than a curtain shutter. The mechanical curtain shutter and electronic rolling shutter produce distortions. In short, the exposure time has the set duration of shutter speed for all elemental detectors of the array but the actual times of those exposures vary across the array.

I posted on this forum and others on Jello Effect distortions. Search words:

Jello Effect

Rolling shutter

Fan

Chas Tennis

Kinovea

Pictures on earliest page of my My Gallery

Chas Tennis

VBK7 wrote:

I’m trying to figure out what type of rolling shutter readout the A7S3 has. Top to bottom or from the middle towards the edges? I’ve been searching all over the Internet, but can’t find a single answer. I use the Gyro data that the camera records to stabilize ProRes raw footage in Gyro flow because catalyst browse only allows you to stabilize internally recorded files and there’s way more flexibility and adjustability with Gyro flow. One benefit of stabilizing footage with gyro data is the ability to remove rolling shutter on fast whip pans. I know that the read out time is 8.7ms in 4K 24-60fps but I can’t figure out how the sensor actually reads those lines. There’s an option to choose top to bottom readout or middle towards edges readout in Gyro Flow and I can’t figure out which one to use for the best results as I haven’t gone out and done tests. Does anybody know the answer to this? Thx.

Sony a7S III Lab Test - Does it Live Up to the Hype? | CineD

Might have a little more info on sensor readout. CineD is a good site generally for camera testing using the same methodology etc. Not that they are without error or bias I'm sure.

You aren't 'removing rolling shutter' with Catalyst, you are using software to try to compensate for the distortions caused by multiple sources (the gyro data specifically compensating for the camera movements). Rolling shutter is quite low in the A7S3. You aren't going to find a consumer camera with one much lower (full frame). In S35 you might be getting better RS on the newly released Fuji X-H2S; but then you are giving up Sony's stellar video AF.