Samyang 10mm f/2.8 ED AS NCS CS - Sample Images
Info and Reviews:
It is also sold under a number of different brands such as Walimex, Rokinon, Vivitar and Bower.
Optical design: 14 elements in 10 groups
2 aspherical elements
1 ED glass element
Lens mount: Canon EF-M, Canon EF-S, Four Thirds, Fujifilm X, Micro Four Thirds, Nikon F (DX), Pentax KAF, Samsung NX, Sony/Minolta Alpha, Sony E (NEX)
Covers: APS-C (around 25.1×16.7mm)