I like the TACO-RC ND Filters for the improvement but after just a few changes .... like 3 at the most the material that secures the filter seems to be breaking up and falling out. I'm pretty sure they will correct the problem but if you've already ordered be sure and watch this area. I have just emailed them so I'll to wait and see if something slipped through the cracks. If I continue to use mine there may be nothing left to hold them on.