You asked

Is the tamron 70 180mm f 2 8 di iii vxd good for video?

I haven't tested this lens for video, and the site doesn't say how it renders footage, so I can't give you a verdict on image quality. Its page does list an f/2.8 aperture, autofocus, and a Sony E mount for full frame. It has no stabilisation, which matters for video. Handheld shots will wobble, so plan on a tripod, a gimbal, or a stabilised body.

It isn't a vlogging lens either. The video guide recommends a wide lens for shooting at arm's length, and 70-180mm is a telephoto. It makes more sense for interviews or for subjects you can't get close to. It fits many video-focused bodies, including the Sony FX3. Whatever you shoot, budget for sound, as the audio notes explain.

Written by Claude from this site's pages.

From these pages