First of all, I informed myself thoroughly Nahlinsen before I've ordered then this here, each of here he thinks can turn his lens into a macro lens is operated incorrectly. Basically, this is a magnifying glass here is her buckled front of the lens! The lenses are also good (What do you want from a piece of glass also great ;-) expect, however, why only four stars, the processing is not good, with 2 of 4 glass is easy also is the screw thread is not quite as high.
All in all, but for experiments a recommended product but not for continuous use!
