Excerpt: I purchased this lens to have an "all around" lens for my NX200. I just got back from Airventure and took about 400 pictures while i was there. After downloading these into my computer I was very impressed with the pictures.
Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Strong Construction
Samsung 18-200mm f/3.5-6.3 ED OIS NX review by arconovum
20 March 2012
Summary: I was very disappointed in this lens , not in the optics but in the mechanics. When OIS was enabled a high pitched tone was emitted from the lens in the 10,000 - 11,000 hz (hertz) range, at about 10 dB(decibels), it was very audible and also could be recorded on the cameras microphones , in this...
Pros: decent optics
Cons: defective mechanics, poor battery life,terrible warranty from samsung
Samsung 18-200mm f/3.5-6.3 ED OIS NX review by Claude Clay
Claude Clay, slrgear.com
27 January 2012
Summary: at the extremes the image begins to degrade. some may not notice; subtle differences showed up against my older MD ROKKOR X Minolta lens mounted to the NX100. still lots more testing to do but its a keeper.
Excerpt: I have NX10 with the standard lens and 50-200. Both lenses are noisy for video. 50-200 is very sharp and fast. Because this system is for traveling it is more convenient to have the lens which replaces both former ones.
Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Nice Bokeh, Strong Construction