Samyang 24mm f/1.4 ED AS UMC - Sample Images
Info and Reviews:
It is also sold under a number of different brands such as Walimex, Rokinon, Vivitar and Bower.
Optical design: 13 elements in 12 groups (4 ED glass elements, 2 aspherical elements)
Lens mount: Canon EF, Nikon F (FX), Four Thirds, Pentax KAF, Sony/Minolta Alpha, Sony E (NEX), Samsung NX
Covers: Full-frame (24×36mm)