Is the canon rf 7 14mm f 2 8 3 5l fisheye stm good for video?

The site doesn't review this lens's video performance, so I can't say it's good for video. Going by the spec sheet, it's a fisheye zoom with autofocus but no stabilisation, and it gets darker as you zoom in (f/3.5 at 14mm). Those are things to check before you shoot.

For vlogging, my video guide suggests about 16-20mm full-frame equivalent at arm's length. This lens's wide end starts at 7mm, so you'd get a strong fisheye look rather than a normal vlog frame. If you want a fisheye effect for specific shots, it can work. For everyday talking-head video, I'd look at a lens closer to that range. You can also check the focal length converter to see how a lens frames on your camera.

Written by Claude from this site's pages.