I have not tried them but I am impressed with the quality and price of this equipment. I understand, what I've read also that you should not use multiple filters at the same time to avoid any color drift. So I also bought a wide angle filter holder (also compatible with these Cokin type filters). Caution: You should cut the tape folded cellophane protection, to avoid that the adhesive (strong enough) being deposited on the filter when it is removed from its protective envelope. Otherwise recommend +++