Samyang 24mm f/3.5 ED AS UMC Tilt-Shift - Sample Images
Info and Reviews:
It is also sold under a number of different brands such as Walimex, Rokinon, Vivitar and Bower.
Optical design: 16 elements in 11 groups (2 aspheric elements)
Lens mount: Canon EF, Nikon F (FX), Pentax KAF, Sony/Minolta Alpha, Sony E (NEX)
Covers: Full-frame (24×36mm)