Canon 28-90mm f4.0-5.6 II is an Auto Focus (AF) Standard Zoom 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 28 - 90mm. With a max aperture of f4 at 28mm, we can not consider this lens fast on wide end and neither at tele end with its f5.6.
Canon 28-90mm f4.0-5.6 II is not a weather sealed lens, so you have to be extra careful against rain and dust.