[Sony E] Images from this lens look outstanding. The sharpness wide open is very respectable, and you be hard-pressed to complain about it from f/2.8f/8. There is some color fringing in high contrast areas, but still very well controlled. Shooting plenty of video, I have noticed that there is slight focus breathing on the lens, but its only apparent if you rack focus from infinity to a close subject quickly vice versa. Build quality is solid. Using the focus/ aperture rings are a pleasure and I'm a huge fan of the look of that metallic red ring :P infinity focus is not at the hard stop but thats not an issue for me. The lens fits snuggly on my a6500. The only complaint would be that the lens hood and rear lens cap are pretty loose.

[f/1.2] I bought this lens with some experience using manual lenses before. Once mounted on my EOS M3, the lens feels solid and focusing was not a problem using the integrated magnifier and peaking focus option. The use of Canon EVF-DC1 viewfinder is also strong recommended. Lens focus ring is a little tought and it has a long travel from minimum distance to infinity, but enough to focus with precision. With that on mind, I purchased this lens only for adult portraits and pics of static objects. It's not suitable to shoot children or action photography. Prior to this lens, I had been using a Canon EF 50mm f/1.4 USM with EOS EF to EF-M adapter. The 50mm 1.4 was fine an easy to use but its image quality is average to my taste, specially with apertures below 2.8. This rokinon shines in IQ from f2. Sharpening and contrast are aceptable at wider apertures, and always better than the Canon and with smoother bokeh. Vignetting is also visible, but nothing to worry about it. Overall, is an excellent performing lens and optically superior to use than the Canon standard lens.

[f/1.2] I've seen a review of this lens that states it's sharper than Fujifilms own 56mm f/1.2...I don't know for sure but this is a very nice sharp lens (as they say, for the money)....or for any amount of money..Try it, if your not happy with it just send it back..

[Manual Focus] I am pretty shocked at how fantastic this lens is optically. It is amazingly sharp edge to edge right at f1.2 and really doesn't need to be stopped down. The Bokeh quality it top notch and the colors and contrast are great. Mechanical operation is solid and smooth and the build is very good. The only drawback for this lens is that for micro 4/3, it is fairly big and heavy. But, that can also be said of the closest AF lens alternative, the Panasonic Leica 42.5mm f1.2. You probably know this is Manual only lens. So if you aren't comfortable with that, this is not for you. With many of the newer cameras, focus peaking and center magnification make it easier, but it's still not as nice as a quick AF button (or face detect AF since this is most likely a portrait lens). TL;DR - If you are OK with a manual only lens, this definitely holds its own against the super expensive Leica 42.5mm F1.2 and the best AF lenses in the system. It's simply superb.

[APS-C] I took advantage of Wanda's black Labrador puppy on Saturday while she was out shopping. He's ordinarily hyper, but tends to pout while she's not home. Given my fair eyesight on a good day, I knew I wouldn't come away with many keeper photos having to manually focus them @ F1.2 under dim light. These photos of Raven are among the first I ever took with this lens, and it's been at least 20 years since I've manually focused any lens.

Labrador Retriever puppies are notorious for untidying home interiors and keeping them that way. This lens's F1.2 ability came in handy in defocusing the background in the one photo.

[9, Rounded] Despite some comments of not-so-great fit, I did not have any issues. Great sharpness. Easy to find exact focus even if manual. Focus ring moves smooth enough but not too fast.

[Manual Focus] The Rokinon 50 1.2 surprised with top-notch performance wide open, little chromatic aberrations and no vignetting. It's the best performing 50mm I have used on the a6300 so far. If you can deal with the lack of AF go for it! Manuel focus feels smooth and built quality is excellent.

[1.265 lb] I use this lens with a Sony alpha 6000. The Lens is incredibly sharp, with little to no barrel distortion or chromatic aberrations. It is a prime lens, and it does not connect electronically to the camera -- this means manual focus only and no EXIF information stored on the shots as to the lens and aperture used. If this is OK with you (it is with me), then this is a great lens. I now use only Rokinon / Samyang prime lenses in addition to the 55-210mm Sony zoom lens for wildlife shots with the a6000. Some people have noted that there should be a distance scale to help with estimating the deapth of field, but after having had the lens for a while you will develop a good intuition for this anyway. One thing that could be an issue some months / heavy usage down the line: f numbers and focusing distances are painted not etched into the lens, so they could wear off after a while I guess.

[APS-C] i had this one for a month barrowed from a friend  but man I compare it.Yes it sharper than xf 56 . but 56 has the magic ( blur)

[Manual Focus] I bought this along with the Sigma dc dn art 30mm 1.4 for my a6300. Optics wise I would choose this over the Sigma. The Rokinon is heavier with a plastic body and yet still nice feeling .There is little purple fringing wide open on high contrast scenes and it is completely gone between f2-2.8. The sharpness and contrast throughout is fantastic. I was surprised how well it did at 1.2. There is no noticeable distortion. The colors are great. The bokeh is very smooth. One of my favorite lenses I have ever owned. I plan I using this for Product shots, video and portraits. Remember if you buy this it is for apsc not full frame. Also manual focus only, which is very smooth. I would 100% recommend this lens. I posted a photo I took with it!!!