Rokinon FE8M-N 8mm F3.5 Fisheye Fixed Lens for Nikon (Black) B002LTWDSK 180 degrees angle of view Built-in petal type hood 10 Elements in 7 groups Aperture range of F/3.5 ~ 22. NOTE: To ensure proper fit with your compatible device, please set camera to manual mode and the aperture must be changed on the lens itself.