Basically the title already says everything important from. Who will not be deterred by the manual focus, gets a sharp and sufficiently strong light Fisheye for little money. Pay attention when buying it, to get the latest version (additional UMC CS II). - UMC stands for the chip in the lens, which tells the camera to which the lens is - important for Live View or automated post-processing in Lightroom. - The II is the latest version with detachable hood. This lens is now full format suitable and offers FX cameras an almost completely round image circle. At Cprop format (DX) simply leave the lens hood to protect the front lens off. Very convenient. The appearance of the lens is good but a bit patchy - bayonet and mechanics seem very solid and of high quality, since many Nikon lenses do not come with. But the front portion (lens hood, lens cap) acts on the material simply cheap. Sure, the price has to come from somewhere so ... In sum, however, no reason for point deduction. What I really like about the Samyang, is that although I have the distinct fish-eye effect, faces at the edge of the image by but far fewer are distorted as in so many other things Fischeye. Absolute Best Buy.