Good value for good - with technical limitation when used with Lumix DMC-LX 7

The circular pole filter works as expected - GOOD! The function of the UV filter I could not really test (this is my knowledge in modern cameras just to protect against scratches on the lens).

If you intend to have the UV filter permanently screwed as protection and unscrew the polarizing filter on the UV filter as needed, you will notice that the image is shadowed at the corners. One shortcoming to which no reference is made when buying (at least I have found no reference)

Saves you look at the UV filter as protection - or use either the UV or polarizing filter - then you are well advised with the purchase!