Currently there are 5 native Telephoto Zoom lenses for Sigma fp and all of these lenses are autofocus (AF) type.
Sigma fp doesn't have a sensor based image stabilization system but 5 of these Telephoto Zoom lenses features optical image stabilization.
Since Sigma fp has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 5 Telephoto Zoom lenses with Weather Sealings.