Let's get this out of the way first: Halos and lens flare where ruining my shots when I began using this kit. I realized that, depending on the angle of the Sun the incidence rate would differ. After careful observation I realized that light was being reflected through the gaps between the glass and the holder and/or between each piece of glass.

The modification: I bought 100x100 filter gaskets made by Haida and attached them to the K&F filters. This completely eliminated my issues. Because I had to buy a gasket for each of my filters I gave this item one star for value.

Once modified, my results with this kit have been excellent. The more I shoot with it, however, the more I wish for a system that was easier to use when a CPL is needed. I have worked out a system and I am quite content with the results. Notice that even when shot directly into the sun the results are pleasing. The bridge was shot at high noon and no light leakage is evident. No artifacts, halos, etc. The glass is of good quality. Picture quality is good to excellent.

I like K&F products and I do like this kit but it is incomplete without the gaskets. I contacted them regarding this concern have have received no response. I don't hold it against them but, again, would not get this kit unless you were willing to buy the Haida gaskets to stop light leakage.