Summary: This lens doesn't work on my Nikon D5300. The camera says the lens is not attached. I guess now I understand why both times I ordered this, I received what was an obvious customer return. Returning.
Summary: I have been taking pictures seriously for over 40 years. During this time I have used exclusively Nikon equipment, pro camera bodies and Nikkor/ Nikon lenses. When I became interested in macro photography shortly after I began, my preferred setup was a Nikon bellows with various lenses. Reversed as well as standard mount. The "contraption" was great for studio work, but left much to be desired in the field. This was well before auto focus cameras of any type.
Great "Normal" Lens, Great Macro Lens, BEST 50mm in this price range!!
Jim Richards, Amazon
22 December 2014
Summary: The Sigma 50mm f/2.8 EX DG Macro Lens is one of my favorite lenses. There are faster 50mm lenses, and there are macro lenses that allow longer subject-to-camera distances, but a lens that fulfills the function of a fantastic "normal" lens (I shoot full-frame on a Canon 5D) with exceptional edge-to-edge sharpness and great color rendition AND fulfills the function of a true 1:1 macro lens is already on my short list!
Summary: I have always purchased Sigma lenses over proprietary lenses. They have superb optics, sometimes even superior, at usually half of the price of Canon and 1/3 of Nikor. As a pro photographer I have learned that no two same model lenses will be of the exact same optical quality. I have never been disappointed with Sigma. Some may not be as quiet in focusing or the paint as pretty. This lens will return the biggest bang for the buck, even at full infinity normal.
Summary: I've only started using this, but right out of the box it is performing very well. It has almost no vignetting, works reasonably well in lower light situations (I was worried about that), and I really dig the 1:1 rendering. The AF hunts a little and is noisy but nothing too worrisome. I'm mostly going to be using manual focus anyway.
Summary: I wanted a great all around macro lens and this lens didn't let me down. A few things to note about this lens, it is one of Sigmas older designs, so the focus motor is a little noisy compared to their newer lenses. But don't let that detour you from buying it, focus is accurate and is fairly fast. I recommend using the Limit switch on the lens when using it for portraits or most any non macro photos.
Summary: This lens was great when I bought it about 6 years ago. 6 years later I have grown to hate this lens. It's focusing slips and it does not capture enough detail. It also had a hard time focusing on detail and constantly zooms in and out at certain focal lengths. Buyer beware before you choose to buy this macro lens. You get what you pay for and I'd recommend buying the Sigma 105mm before buying this. Talking from experience. Would not buy this again nor recommend it.