Venus Laowa 10-18mm F4.5-5.6 FE Zoom is a Manual Focus (MF) Wideangle 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 10 - 18mm. With the max apertures of only f4.5 at 10mm, and f5.6 at 18mm, the lens is quite slow at both ends.
Venus Laowa 10-18mm F4.5-5.6 FE Zoom is not a weather sealed lens, so you have to be extra careful against rain and dust.