This set of camera lens filters are of excellent quality. I am very much an amateur and have only limited experience using filters and that was years ago when I was taking a couple of B&W photography courses with a 35 mm film camera. I do have two DSLR camera & lens kits which I have been experimenting with and when I saw these lenses I wanted to try them out. I am not as familiar with the Japanese-made glass used in these filters as I am with the German-made glass in the lenses and filters I used to have, but the optical quality of this AGC glass and the coatings seems to be top-notch. The filters are thin, light and strong, + they are also very clear with no imperfections noticeable to the naked eye. The light transmittance is very good, so even though I am diffusing the light, there is still enough. I really appreciate that this set includes both the 1/8 and 1/4 lens filters. I ordered the 58 mm version for my Nikkor zoom lens and both filters fit perfectly. i like that both of the filters have the external threads so I can also attach another filter over or under the one I am using. I haven't done that yet as I am still exploring what type of images I can get just using one or the other of the filters in this kit. The cases are very nice, as well -- they feel strong & sturdy. The current price for two lens filters seems very reasonable, and I will definitely look for this brand when I'm ready to try other types of filters.