Nodal Ninja NN4 Tripod Head with RD16 II Rotator for Panoramas featuring For Spherical @ HDR Panoramas, Supports Up to 100mm Lenses 62mm Diameter/Nadir Footprint.
The 8mm f/3.5 HD Fisheye Lens with Removable Hood for Canon from Samyang gives you a 167° view with dramatic, exaggerated perspective when used with an APS-C camera, or a powerful circular image floating in the frame when used with a full frame ...