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. I can shoot indoor picture using available light now; something I wasn't able to do before with the old lens. Highly recommended!
Summary: This is better than the original one that came with the camera in that it is not plastic (which broke easily) from the original camera. I had to spend lots so turning out to be an expensive camera.