This is a very pleasant surprise. The image above was taken on the ver cheap Samsung 50-200 for the NX system.

When I purchased this (because I wanted something with more reach than the 18-55 kit lens), I would never have believed it to produce images of this quality. The 18-55 kit lens is also pretty good so I took a chance on this one. The lens is nothing special to look at. Actually, all these 50-200 lenses from all manufacturers look about the same, with the same build quality. I still have to give this lens a good workout, but from what I've seen so far, it performs pretty well. More images to come in the weeks ahead.