Excerpt: This Lens is a replacement of an unfortunate accident. Is a nice kit lens useful for portrait, landscape. Is a good companion for the NX20 when you want to travel without many accessories, big bags and other lenses
Pros: Consistent Output, Easily Interchangeable, Fast / accurate auto-focus, Lightweight, Sharp images
Summary: The 20-50mm non-OIS lens which comes with the NX100 is much much useless indoor if you are not using a flash. I wish they would include this lens with the NX100 instead. I like the NX100 more now since I acquires this lens.
Summary: A great upgrade over the 20-50mm lens! Very quick focus, sharp images, and the image stabilization is fantastic as well. It is physically larger than the 20-50mm, but it's well worth it. Not a whole lot else needs to be said, this guy is excellent.
Summary: This is the primary lens on my NX20. The 18-55's very quick auto focus alone makes it well worth the price. It rarely hunts. The OIS is a good thing, especially with macro photos. Solidly built, proper metal bayonet, good shade.
Summary: Replacing the 20-50mm kit lens that came with the NX2000 with this amazing 18-55mm zoom lens. Although this lens was also a kit lens but the size is bigger and feel more solid than the smaller 20-50mm. This lens is sharper and focus faster than the 20-50mm lens, and it won't move when autofocus.
Summary: It fit my Samsung NX300 very well. It also came with lens cloth and cap. Would buy again! As for pictures in low-light, it can take pictures in complete darkness and you will be able to get something a picture out of it.