You asked
Is the canon ef 24 70mm f 2 8l ii usm good for vlogging?
Not really. I wouldn't pick the Canon EF 24-70mm f/2.8L II USM for vlogging. It starts at 24mm, and on full frame that's already tighter than the vlogging guide wants. The guide suggests around 16-20mm full-frame equivalent at arm's length, because stabilisation crops in further. This lens also isn't stabilised, and on APS-C it frames like 38-112mm, which is tighter still.
It's a strong lens for portraits, events and general photography, with a fast f/2.8 aperture. For vlogging, look for a wide lens or a camera with a built-in wide zoom. The video guide also covers what matters more than the lens, like a flip-out screen and a microphone input. Many people do well with a phone and a good microphone.
Written by Claude from this site's pages.