Used for a few days but did some testing on my A6000. Manual focus is very smooth and comfortable. With the aperture wide open, the lens is good throughout the frame. Stopped at 2.0 middle goes from good to great. Far angles improve in the f4 to f8 range to really excellent results. I have a Sigma 19mm which will be a close competitor. There was no competition when comparing these two lenses. The edges of the Sigma 19mm lens are blurry at f2.8 compared to the Rokinon, and even when stopped down it never comes close to the Rokinon. Sure, the Sigma has autofocus, and at half the price it's still a good buy. If you're a landscape photographer like me, this lens should be on your list.
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