A fisheye lens is a type of wide-angle lens that produces an image with a distorted, curved perspective. Fisheye lenses are typically ultra-wide angle and can have an angle of view up to 180° or more. These types of lenses often come in 8mm, 10mm and 16mm varieties, depending on the brand and model. Canon offers several models that give a full 180° field of view including their EF 8–15 mm f/4L Fisheye USM Lens, EF 15 mm f/2.8 Fisheye Lens, and EF 14 mm f/2.8 L II USM Lens; while Nikon's offerings include their AF DX Fisheye Nikkor 10.5 mm f/2.8G ED Lens and AF DX NIKKOR 16–85 mm f/3.5–5.6G ED VR Zoom Lens which gives approximately 180° view at its widest setting (16mm).