For a price of about 11, - you can of course not Topweitwinkelkonverter expect, but it served its purpose. If you fotogafiert in widescreen format, the result is useful. However, there are of course strong distortion, but which can be too much to curtail correct PTLens good example with the program without the Wide Shot, otherwise the whole thing would not be worthwhile. Tip for beginners: Buy. 3 stars because of the not so good free processing. But all in all ok.