Even though the screw-on solution is a bit tricky and it is unusual not to find a rotary lever for the polarizing filter, all filters work excellently on my D7000. I can't detect any aberrations, distortions, etc. That's all I need. The original polarizing filter from Nikon costs, for example, ALONE already about 150 euros, I have discovered nothing that can better. The brush is ingenious (just pull off the cap on the back and then pull the rubber stamp (not at the end)). The small bag is ebefalls super, so at least the parts do not fly, as usual, in breakage-prone hard plastic boxes in the photo bag around. I find the set as it is completely class. It would be better only with ner instructions, the manufacturer / seller probably assumes that all know what they have there, but is not true, a small note with a few tips on how it works or-. is handled (manual) would certainly silence many critics. When I read the reviews here, a manual is really missing, although everything is logical and easy. Apparently some do not even know what for and how to use the filters.

I would not follow the tip to use the UV filter as a lens protector (at least with digital cameras). These filters also have disadvantages with digital cameras, they can reduce the performance of the lenses under some conditions, modern lenses already have UV protection at the factory, double is not always better. The front lens is better protected with a sunshade.