Excerpt: Surprisingly it has more definition than the original lens from Sony. My cousin has the same camera (Sony a6000) and compared: the Sigma lens was superior by far. Also color reproduction was much better. My only negative feedback is that I had to wait three months for my lens.
Pros: Fast / accurate auto-focus, Nice Bokeh, Strong Construction
Excerpt: The picture quality that this lens produces is second to none! The bokeh on the portrait pics is amazing, and focusing ring is really smooth, and the clarity is very sharp. If you have a Sony Alpha, you need to have this in your bag.
Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Nice Bokeh
Excerpt: In my experience the rave reviews and comments about its sharpness and quick, accurate autofocus are absolutely correct. I bought it to take photos in low light with a Sony a6000 (24 megapixel, APS-size sensor mirror-less) and find that it is a key addition to the kit lenses.
Pros: Compact, Fast / accurate auto-focus, Lightweight, Very good Image Quality
Summary: This lens is sharp. I am going to gear my review for those who are deciding between this one and the Sony 50mm f1.8. I own both and they each serve their purpose. If you are into videography, get the Sony. The Sigma is loud and focusing while recording, from what I've seen online, is not as smooth.
Excerpt: I own the 19mm, 30 mm and now the 60 mm version of this lens and all are excellent. Lightweight, quick to focus, very very sharp, excellent color and contrast- just a really nice lens to own. It's amazing that this lens is so inexpensive for what it gives back. You really can't go wrong.
Pros: Consistent Output, Durable, Fast / accurate auto-focus, Lightweight, Nice Bokeh
Summary: I use this lens on my Sony A6000. It's the sharpest AF lens I have for the A6000. Very good portrait lens. I highly recommend it. It's fairly low cost at $200 (new) and it's as sharp as $1000 Zeiss lenses. The F2.8 is fast enough for most situations and DOF is good.