Currently there are 8 native Wideangle Zoom lenses for Sigma BF and all of these lenses are autofocus (AF) type.
Sigma BF doesn't have a sensor based image stabilization system and none of these lenses have optical Image Stabilization.
Since Sigma BF has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 7 Wideangle Zoom lenses with Weather Sealings.