Certainly we are far from the quality very good filters ND major brands, but we are also very far from the high prices of these filters. These guys are not professional quality, however, are very good for casual use, I did not expect that they are also assets. The main criticism concerns the visor, do not use below a 35mm otherwise it will be visible at the edges. This same sun visor is also very poorly designed and too tight the filter holder, which prevents them from sliding well filters. If you only have one lens or one filter diameter, take a conventional filter screw, the installation will be faster. But if you have multiple targets of different diameters kit with all these mounting rings is perfect. Filters colors are a little gadget that I do not really need, but the only kit including ND + postage filters was virtually the same price as this one with the free port. To sum no regrets on this purchase, I have broadly for my money
