Features: 8mm f/3.0 Aspherical fisheye lens, an excellent addition to any photographer collection, allowing you to expand your creativity from truly unique perspective and record incredible scenes. UMC-ultra multi-coating, can reduce glared-light and double-images, helping you achieve the best color balance. Manual-focus lens for camera with APS-C sensors(can also be used on full frame cameras, with vignetting). 180 Degree wide angle view, give you the utmost feratures of fish eye lenses. H-ASP hybird aspherical lenses provide excellent images and contrast even though biggest aperture in center and edge of frame. Specifications: Material: Magnesium Aluminum Alloy+Optical Glass+Multi-layer Coating Size: Standard Size Name: 8mm F3.0 Aspherical Fisheye Lens, Wide Angle Lens Focal Length: 8mm Aperture: F3.5-F22 Angle of View: 180 degrees diagonal Minimum Focusing Distance: about 0.3meter/11.81inch Lens Construction: 10 Element in 7 Groups Frame: half frame (support full frame) Number of Diaphragm Blades: 6pcs Lens Type: Manual Lens, Prime Lens Foacl Length: Wide-angle Fixed-focus Anti-shake: no Lens Hood: detachable(not included) Applicable Model: for D3100 D3200 D5200 D5500 D7000 D7200 D7500 D90 D7100 DSLR Package Includes: 1x 8mm F3.0 Aspherical Fisheye Lens 1x Front Lens Cover 1x Rear Lens Cover 1x Lens Pouch note: Please allow 0-1cm error due to manual measurement, make sure you do not mind before you order. Please allow slight chromatic aberration due to different display resolutions.