I am equally as confused. I bought the Bower version at B&H when I was in NYC a couple of weeks ago. I am very unhappy with the results and am planning to return it. Did I just get a bad copy and should I order a new one? And, if so, which version? I now see that B&H is selling the Bower version for $299 (with $80 instant savings until December 5). I paid full price of $379. B&H wants $379 for the Rokinon version and $399 for the Samyang version. Are they really all the same? Or are there some differences that would explain the price difference? And, it appears that the Nikon version has a focus confirmation chip, while the Canon version does not. Although the lens is UWA and I will presumably be using it stopped down to some extent, giving a fairly wide depth of field, I can't see to focus all that well through the viewfinder and unfortunately still work with the 5Dc (and thus have no live view for focusing). Assuming I get a new copy, and it is acceptable, how do I add focus confirmation (reading other posts, it sounds like that is what others have done)? Thanks for any insight.