But I'm concerned about the various names this manufacturer markets these lenses under. For example, B&H carries this focal length under Samyang, Rokinon and Bower with the Samyang costing $30 more than the Rokinon and Bower versions ($329). If they are the exact same lens, then why the difference in price?
Aside from price my other concern is the lack of available actual test reports. The only one I've been able to find is dated 10/14/13 on SLRgear.com
My thoughts -
I scoured the internet for reviews and comments on this lens by most of its names, and pretty much everything was positive, especially at the price point. I think it's a safe bet the lens is a good buy. I am definitely happy with mine, at least as good as I hoped it would be.
On the name, I think the brands are targeted at different geographical areas, and the pricing reflects the lens being acquired through different distribution channels and possibly exchange rates. That's a guess on my part, though.