Summary: The lens does appear to be well made. However, on my x920 video camera, there is obvious edge distortion and blurring. I don't think it's because the lens is bad, but rather because it is a one-size-fits-all lens. That means that with some cameras it is good, and with others, not so good.
Summary: This is my first review, but I was so let down by this product I was inspired to write. I wish I could post pictures, to show you the examples. The very center of the image is fine, but everything on the edge is blurred.
Didn't keep it...soft and distorted on Sony RX100-2
21 February 2014
Summary: Returned it after trying it on my Sony RX100-2. Optics on wide angle lens not nearly as good as on Sony. I may have been asking too much of it...not crisp, distorted around the edges. Was hoping to add the wider angle capability and this is one of the few add-on lenses with the 49MM threads.
Summary: My husband is very happy with this lens. I bought it for him for Christmas. He didn't get a chance to try it out until this past weekend, at a miniature train show. This lens is priced much cheaper than a similar Canon lens that is available for his camera, yet the quality is every bit as good.