That joke nearly worked (skeptical)
Samyoung is this Samsung's younger brother
Its because this is the video lens with T2.2 for F2.2. Samyang do sell a standard 12mm f2 for the M mount on Amazon for £299
Canon version is very close to Sony, but not exactly the same model - Sony version is 12mm 2.0 while Canon is 2.2. Still excellent lens though.
Only fb samples but you get the idea what the lens look like (a6k aps-c sensor).