Excerpt: The Rokinon 14mm f/2.8 at this price point is hard to beat. It's manual of course (oh what did we do before auto focus? This is sarcasm). The lens is plastic but well built with a smooth click less focus ring. It's moderate weight is not substantial, but attached to a Canon 5D Mark iii, it's well balanced. Focus is sharp from 2.8 on up with minimal fall off at higher stops. Overall sharp lens for exploring a more creative view.
Excerpt: I can't get enough of this lense! If you are into milky way photography, or just astrophotography in general, this lense is definitely for you. Although it's manual adjustment, it only took me a few minutes of playing around with it, to get it. BUT now I can't stop using it. I shoot all my timelapses with it. I highly recommend this lense to anybody into landscape, milky way and astrophotography.
Excerpt: I originally bought this lens for shooting the Milky Way with a Canon 5D Mark II. I have not had a chance yet to really test it for that application, but I have done some general landscape shooting with it and was very happy with the results. Distortion was not a major noticeable problem for me and what was there was easily corrected in LR. I have not tried shooting anything where distortion would be very noticeable.
Excerpt: I'm fitting this to a Canon cinema camera and I couldn't be happier. Focus and aperture rings are super-smoothly geared and their use felt immediately intuitive. The construction is Rokinon-solid (that is to say very good) and, most importantly, the image is really nice. I haven't run into any detractors to report, as of yet.
Pros: Easy To Use, Highly Compatible, Professional Quality
Excerpt: I use this lens mostly for nightscapes. Because I'm using it on a crop sensor camera (Canon T2i) I can't vouch for the extreme edge to edge quality. I plan to use it on a full frame when I get one. The images are sharp. A nice improvement over the kit lens. The price makes this very attractive. I used it on some general, daytime shots yesterday and the manual focus doesn't seem to be any issue.