Rokinon 8mm T3.1 UMC Cine Fisheye II Lens for Fuji X Mount Digital Cameras (CV8MBK31-FX) Fixed 8mm focal Length Fisheye lens Aperture range f2.8-22 New and improved optics and construction 11 elements in 8 groups, built specifically for mirror less cameras Minimum focus distance 1 foot.