Samyang, if you ask nicely, have their brand new (not yet announced) Samyang 8mm T3.8 diagonal fish-eye lens to show at Focus on Imaging. The new lens is designed for video and features stepless aperture control and geared manual focus. We will post more details when the official press release is available.
Samyang 8mm Fisheye For Video (2)
Samyang 8mm T3.8 Diagonal Fisheye Photos of Equipment