Samyang 8mm F2.8 UMC Fisheye II (Black) Lens for Sony E-Mount (NEX) Cameras (SY8MBK28-E) Fixed 8mm focal Length; Fisheye lens Aperture range of f2.8-22 ; Format Compatibility: APS-C ; Angle of View: 180 degrees New and improved optics and construction ; AF Drive: Manual focus only ; Minimum Focus Distance: 11.81 Inches / 299.97mm Constructed of 11 elements in 8 groups; built specifically for mirror less cameras Minimum focusing distance of 1 foot.