However, the processing is rather moderate. As already described in another review, the filter was smeared right at Ausliferung (from the side that comes to the camera). But considering the price can get over the (you mus stop him best cleaned before first use).
A bigger problem, however, is that it is very difficult lößt back from the lens (at least from my Canon 18-55 IS II).
On permanent filter only by brute force to remove can not be good for the lenses ...
Therefore, this filter is to be used with caution (and best to not too expensive lenses).
