Review: C mount 4-12mm Tamron 1.2

Here's a kid who's made a nice, thorough video review of this C mount lens on the Panasonic GH2. Also interesting information about using C mount lenses in general and surveillance lenses (such as this Tamron) in particular. Only critique I have is that there's no link to a seller of this lens! (he mentions he bought it for around 90,- but didn't say where)