I bought the three filters based on the price at the same time very positive reviews and unfortunately regretted it. The UV filter is felt not paid, there is especially in night scenes reflections, flares and silhouettes of a strong light source, so that I have the filter that I wanted to use as a lens protector permanently removed fairly quickly. I'll just continue to take good care of my lens. The ND filter gives a slight purplish tinge in the pictures, which you can accept, since it can be expected out again in the RAW Processing. The ND filter I use less frequently, so that's ok for me, especially since many ND filters have similar problems, especially when they have a higher strength (ND1000). The biggest disappointment for me was the polarizing filter. Of which I have promised me the most - when taking pictures of cars in cities (on the approximation of the light intensity on the sky and buildings), in landscapes. Unfortunately, this filter brings a can not be overlooked color cast in the pictures, which is unacceptable for me. I had the right to use the filter more often, but when I then so much has to readjust to the computer, then this is an exclusion criterion. I have for smaller filter thread B + W polarizing filters to compare, which was too expensive for this size, but so in retrospect I am angry because I am now but resort to a more expensive copy to get neutral images. Two stars because the filters do all what they want, though far from optimal.
