Good quality and unbeatable price !! 1

Manufacturing serious. The few filters that I have tested have given full satisfaction. This material is perfectly compatible with the hardware of the brand Cokin filters and coolers supports can be carefree from one brand to another. The multitude of rings is a more obvious and allowed me to equip all my goals, even my old M42. Some colored filters give some surprising and interesting results. Just as some gradients that are bluffing when using backwards (down color and clear side up). I am more than satisfied with this purchase that will occupy me for a good while before I take every opportunity. As for the price I did not find cheaper with quality that remains at the top. For those who see pink by superimposing ND, I have not tested, but the color cast should be compensatable by shooting in RAW and correcting development.