The more expensive, the filter significantly better! Anyone who is seriously interested in the possibilities of a CPL filter should take some extra cash in hand. To get to know these filters is possibly useful.
The build quality is good, but without adjusting the rotation mechanism smoothly himself. Unfortunately, due to the weak filter performance is the maximum extinction polarized light hard to find and it is tempting all the time to turn on the filter, hoping to be able to enhance the effect ...