I bought both the Samyang fisheye as well as the 15mm BCL about a month before the 9mm BCL was announced. Granted, those combined only set me back $235, but had the 9mm been around at that time, I might have forgone both of the other lenses because the 9mm, while obviously not being as sharp, wide, or fast as the Samyang, would, as the 15 BCL lens is now, be always with me in the little pocket in my camera bag (I wouldn't enjoy carrying the Samyang on a daily basis where I want to have my bag as light as possible, especially when the lens of choice in addition to the BCL might be a pancake). So, I guess "buy both!" is the obvious answer. And I'm thinking I'll get a used 9mm if I ever find one cheap this summer. But until then, I'd like to see if anyone has any comparison shots between the Samyang and 9mm BCL? Thanks!