Originally posted by RawheaD True. But as an owner of the 12-24, really the only reason why I would consider (and have been considering) the Samyang was for the potential better distortion (and maybe that one stop faster aperture). Center sharpness and f2.8 won't make up for worse distortion and the inability to take filters, when compared to my 12-24 @ 14mm.
I dunno. Ever since getting a Hasselblad Super Wide C, I've been spoiled regarding distortion :-)
But the Pentax has a lot more range with just as much distortion, and the benefit of autofocus too, which isn't really helping this lens any more. Also, how much does the price compare to the Pentax lens, because all those things should make it a lot more expensive, although it doesn't have a constant aperture and the benefit of prime sharpness to go with it.