So first must be unscrewed from the camera the focus ring with the lens. It occurred to me that the thread is any resin. Thus, the whole tinkering is still tacky.
The lens is definitely only be used in the focus ring and not screwed. However, thanks to the resin also quite firm. In order not to scratch the existing lens, you can try to be the lens with a cloth and to solve with a powerful jerk counter-clockwise (when the label side of the focus ring shows to the ground).
Either you get the lens out as a whole or in order to solve the objective of its upper part, what I call "collar". In the case you have to be careful because that is then free to move the front lens fall on the ground. So carefully unscrew. See my photos.
When the collar still stuck in the focus ring, you should use a needle-nose pliers or similar and knock out the collar with a sharp blow from the focus ring. Then you can screw the collar back onto the unscrewed original lens and put away.
The instructions mentioned then that the wide-angle lens should not be used in all the focus ring. Apparently the wide angle is not long enough. And also does not sit as tight as the original lens focus ring so that it is (at least for me) always slipped entirely into the focus ring. Here I received a picture in which you could not see anything (such as short-sighted with -20 diopters).
I then screwed the lens completely without focus ring to the camera. One should have to run the camera and check the picture. If it's hot, just do not screw it on. After that I could put on it the focus ring simple - unfortunately wobbly. Then but eh not required.
The wide-angle covers an estimated 400% of the original lens, and is recommended in normal rooms. There is one star. For all the rest of the fiddly work and the glue stuff no single star.
I have a bunch of pictures that set here (sorry, am not a photographer, images are incorrectly exposed and blurry, but you can see enough).
