Is the sony a7s good for video?

Here is what the site says about that.

From Sony a7S: Sony a7S: A mirrorless camera by Sony with a 12.2-megapixel full frame sensor, announced in 2014. Specs - Maker: Sony - Mount: Sony E - Sensor: Full frame, 36 x 24mm, crop factor 1.0 - Resolution: 12.2 megapixels - Stabilisation: none in the body; use stabilised lenses for slow shutter speeds - Announced: 2014 - Type: mirrorless camera Focal lengths on it Full frame is the reference size: lenses frame as marked. ...

From Sony a7S III: Sony a7S III: A mirrorless camera by Sony with a 12.1-megapixel full frame sensor, announced in 2020. Built for video and low light; 12 megapixels is little for stills.

Quoted from this site's pages.