You asked

Is the sony vario tessar t fe 24 70mm f 4 za oss good for video?

Yes, it's a sensible video lens. My video guide says stabilisation and smooth autofocus matter most, and this lens has both. It's stabilised, and it has autofocus. Its f/4 aperture is comfortable for video too, and you won't need to chase focus as much as with a faster lens.

It fits a lot of bodies, but these video-focused ones are good partners:

Before a long shoot, check how long each body records in 4K, since some small bodies overheat.

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