Tokina AT-X 107 DX Fish-Eye, 10-17mm, f/3.5 - 4.5, Canon

The Tokina AT-X 107 DX is a compact and lightweight fisheye zoom lens that offers digital photographers a field of view of approximately 180° with dramatic image curvature or "fisheye" effect. This perspective opens up entirely new expressive possibilities for photography. A complete image from corner to corner that includes everything around the subject makes this lens a valuable tool in street, landscape, architecture, underwater, and 360° panorama photography.