Tokina AF 10-17mm f3.5-4.5 AT-X DX Fisheye Lens for Canon
With an edge to edge rectangular image, this Tokina lens gives full 180 degree view. The zoom capability allows you to adjust the composition as well as how dramatic the curved fisheye look is. The front of the lens uses a water repellent coating, which prevents smudges and makes the glass easier to clean. A super low dispersion element helps keep images sharp. The f3.5 to 4.5 aperture isn't as wide as some of our other picks, but the edge-to-edge performance and zoom versatility make this product an excellent option.