The Samyang 8mm f/3.5 Asph IF MC Fisheye CSII DH lens features a detachable lens hood (DH), and is otherwise identical (optically and mechanically) to the version with a non-detachable lens hood.nnIt is a high-quality ultra-wide-angle fisheye lens designed for digital SLR cameras with APS-C sensors (CS).nnIt is a "full-frame" diagonal fisheye lens for APS-C DSLRs, which means that the image produced fills the frame on APS-C cameras. It produces an immense field of view - 180 degrees on 1.5x crop sensors, or 167 degrees on 1.6x crop sensors such as Canon EOS APS-C DSLRs.nnOn full-frame cameras, it produces a vignetted, almost circular image with the lens hood removed. This effect is sought after by users wanting to obtain the widest possible image/field of view for panoramic software on full-frame cameras, which is one of the reasons why Samyang produced this version with a removable lens hood. The Samyang 8mm Fish-eye lens is ideal for creating panoramas and 360° virtual tours, including full 360-degree images with appropriate equipment and various third-party panoramic software provided by other manufacturers.nnThe optical construction of the lens comprises 10 elements in 7 optical groups. The Samyang 8mm fisheye incorporates a hybrid aspherical lens and the latest generation multi-layer anti-reflective coating (MC) to minimise reflections and ghosting.nnLike all current Samyang lenses, it features manual focus. The body of the 8mm fisheye lens does not change size thanks to its internal focusing (IF) design.nnFisheye lenses are also appreciated for special effects where distortion and field curvature, exaggerated perspective or extreme depth of field are desired. Skateboarders, for example, adopt Samyang fisheyes for their videos and photos, due to their very high quality while remaining very affordable; alternatives are very expensive, or are low-quality lens adapters offering poor results.nnThe Samyang 8mm fisheye lens offers some of the best optics in its class, and exceptional value for money. A specialised lens, accessible to all photographers.nnThe Samyang 8mm 1:3.5 Aspherical IF MC Fish-eye CSII DH is available in Canon EF, M, Sony A, E, Pentax, Fujifilm X, Samsung NX, Four Thirds, MFT mounts.nnnspecificationsnnn