Barrel distortion is not well controlled. It is quite bad actually when compared to other similar lenses like Nikon 14/2.8 and even the Nikon 14-24. The distortion is mustache shaped and is not easy to correct for inexperienced PPers.Originally Posted by Shahmatt
The samyang got all the praises for it's sharpness, CA control and most of all, its low price. It does not perform better than similar offerings from other brands, but performance is almost there while priced very very low.
It does not make sense on APSC sensor based bodies simply because that focal length is offered by so many other lenses for crop bodies. 11-16, 10-20, 12-24, 10-22 from multiple brands.
Only on a full frame camera does 14mm becomes hard to achieve. And only a handful of lenses can offer this focal length and all of them are much more expensive.