Amazon.com : Rokinon 8mm f3.5 AS IF MC CSII DH Fisheye Lens with Removable Hood for Olympus and Panasonic Micro 4/3 (MFT) Mount Digital Cameras (HD8M-MFT) : Electronics
8mm f/3.5 Fisheye Lens: Samyang, Pro-Optic, Bower
Samyang 8mm f/2.8 UMC ii lens review with samples - YouTube