Tokina 16.5-135mm f3.5-5.6 DX is an Auto Focus (AF) SuperZoom lens with APS-C / DX max sensor coverage. When mounted on a APS-C / DX sensor camera, it will give you an FF equivalent focal range of 25.5 - 202.5mm. With a max aperture of f3.5 at 17mm, we can not consider this lens fast on wide end and neither at tele end with its f5.6.
Tokina 16.5-135mm f3.5-5.6 DX is not a weather sealed lens, so you have to be extra careful against rain and dust.