While there is no official press release yet (but a leaked one from Canon Australia),…
A picture of the upcoming Samyang 16mm f/2.0 lens has been unveiled on Facebook, along with some specs. Among other mount types there will be a version for Canon EF and M mounts.
The 16mm focus length with rectilinear imaging system ensure extra wide angle of view amounting to 83.1 degrees (for Nikon version and 79.5 for Canon). The big aperture opening of F2.0 ensure photographers able to use it for low light environment like night street shooting. The weight of the lens is just about 571g, as a result this lens will be a attractive carry on for architecture and landscape shooting.