Canon RF 24-240mm F4-6.3 IS USM is an Auto Focus (AF) SuperZoom lens with 35mm FF max sensor coverage. When mounted on a 35mm FF sensor camera, it will give you an FF equivalent focal range of 24 - 240mm. With a max aperture of f4 at 24mm, we can not consider this lens fast on wide end but f4 at 240mm is not too bad for tele end.
This lens features on optical image stabilization which helps capturing sharper images at lower shutter speeds. Canon RF 24-240mm F4-6.3 IS USM is not a weather sealed lens, so you have to be extra careful against rain and dust.