Currently there are 9 native Standard Zoom lenses for Fujifilm X-T1 IR and 8 of these lenses are autofocus (AF) type.
Fujifilm X-T1 IR doesn't have a sensor based image stabilization system but 5 of these Standard Zoom lenses features optical image stabilization.
Since Fujifilm X-T1 IR has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 5 Standard Zoom lenses with Weather Sealings.