Selling my virtually brand new SRP ND8/CP & ND16/CP. i've used the ND8/CP maybe 4 times total. I haven't touched the ND16/CP once. Only reason I'm selling is because I'm not a huge fan of the slip over design and I've gone and ordered a set from Taco RC that thread onto the camera. SRP makes some of the best filters out there though and the advantage of these is that they have the Circular Polarizer built into the ND filter which really gives some added pop to the images. $90 OBO. Pics upon request but they are both brand new with all original packaging in flawless, mint condition.