Amazon.com : LENSKINS 82mm ND64 Filter, 6 Stop Neutral Density Filter for Camera Lenses, 16-Layer Multi-Resistant Coated, German Optics Glass, Weather-Seal ND Filter with Lens Cloth : Electronics
NiSi SWIFT FS ND Filter Kit with ND8 (3 Stop), ND64 (6 Stop) and ND1000 (10 Stop) for 52mm | 55mm | 58mm | 62mm Filter Threads + Case | NiSi Optics USA