No special effect detected

The polarization filter shows keinerkei effect on me. Neither are any contrasts enhanced, yet remarkably reduced reflections, admittedly a small difference is in the latter compared directly visible, but nothing you could not get loose by retouching.

The UV filters also shows no optical effect, but after what I've noticed, he is also the only conditionally.
Chromatic aberrations I have not seen him since I can not judge acts consequently.
But as a lens protector he is good anyway. I always let him on the current screwed lens, so that the front lens does not scratch and it does the job nicely.

The FLD filter bathes everything in a rich purple, which is photographed by him. He intended to prevent a greenish tint in artificial light shots.
Well, this coloring you can certainly use for one or the other funny effect and the greenish tint correction may be useful when color film footage, both of which can also be achieved with digital SLR readily by white balance.

Make the filter in my eyes nothing ago, even the artificial leather case, in which it dissolves come with me already on.
For suitable as a lens protector UV filter I forgive even a grace Stern, but he who seeks only a lens protector, must not spend so much money.