Haida 77mm NanoPro MC ND 3.0 Filter (10-Stop) HD3295-77 B&H
Haida 77mm Slim Pro II MC ND Filter Kit, 3 6 10 Stops, ND 1000x + 64x + 8x | eBay
Amazon.com : Haida 2 in 1 CPL + VND Filter for Camera Pro II Multi-Coating Circular Polarizer + Variable Neutral Density SLR Camera Lens Filter Waterproof Scratch Resistant Nano-Coating Filter 77mm : Electronics
Amazon.com : Haida Ultimate Long Exposure Set 72mm / 77mm Slim PROII Neutral Density MC ND Filter Kit ND8 ND64 ND1000 + Step Ring + Tortoise Case HD4547-77 : Electronics
Haida 77mm NanoPro ND 5.0 (17-Stop) Filter
Haida 77mm NanoPro MC ND 1.2 Neutral Density 16x Filter (4 Stop) | eBay