You asked

Is the viltrox af 25mm f 1 7 air good for video?

Not really, at least not for vlogging. On APS-C it frames like about 38mm on full frame, and the video guide suggests roughly 16-20mm full-frame equivalent at arm's length. At 38mm you'll be cropped tight, and this lens isn't stabilised, so you'll have less room to steady the shot.

What it does have going for it is light weight, autofocus and a low price, which all help if you shoot handheld or mostly work at a distance. It's a decent choice for talking-head or b-roll shots where you can step back.

For a vlog, I'd look for something wider, and remember that sound matters more than most people expect. Budget for a microphone before you buy a lens.

Written by Claude from this site's pages.

From these pages