Summary: I never thought I'd want to go wider than 24mm but after seeing the photos on the Flickr Samyang 14mm f2.8 page (The lens is badged under different names, including also Bower and Vivitar.), and particularly those of the night sky with stars, I decided to give it a try.
Excellent value for the money. If you don't mind a manual lens, get this.
26 June 2014
Summary: I already owned a Rokinon 85mm f/1.8 lens, and have been extremely pleased with that. This Rokinon 14mm f/2.8 lives up to the expectations I had for it. The DOF is amazingly deep on this lens, even wide open.
Excerpt: I love this lens! I am using it with an A99 and have captured some amazing landscapes, skies, wedding images and even some band shots at a live venue. There is definitely some distortion with the 14mm if your subject is not in the middle of the frame.
Pros: Clarity, Compact Design, Easy To Use, Highly Compatible, Improves Performance, Lightweight, Professional Quality, Sharpness
Summary: I purchased this lens for night photography, and when I received it, it would not fit on my Sony A7R. I removed my 35MM Sony Lens very easily, and then tried for several minutes to line up the mounting ring on the Rokinon Lens, and it simply did not fit.
Summary: The lens is very good and substantially what I wanted. I was disappointed to learn than with my Alpha 330, the lens can only be used in the manual mode. This is not a huge problem, but i was under the impression that it would be fully integrated with my Sony.
Summary: What a little gem! It's all that the other reviewers say it is. The only things I can add are: 1) buy PTLens software to remove the lens aberrations. PTLens works either as a stand alone or can plug into Paint Shop Pro x5 & x6 (and presumable Photoshop).
Excerpt: I bought this lens specifically to use for time lapse photography. The manual aperture control is vital for that purpose. My caution came when I tried to focus the lens at infinity. At f2.8 I found that the lens is focussed at infinity when set at the 3 meter index mark.