HAIDA Slim Neutral Density Filter Set 77 mm Consisting of ND8, ND64, ND1000 Filters 77 mm Including Stack Cap Filter Container + Pro Lens Cap with Inner Grip: Amazon.de: Electronics & Photo
Zomei 52mm/58mm/67mm/72mm/77mm/82mm Pro Slim Hd Mc Nd Filter Nd1000 10-stop/3.0 Neutral Density Lens Filter For Canon Nikon Sony - Camera Filters - AliExpress
$366 Haida 77mm NanoPro Magnetic Filter Kit | Buy Cameras Direct Australia
Thoughts on the Haida 77mm ND 1000 – Pictured by Lamar
Amazon.com : Haida Ultimate Long Exposure Set 77mm / 82mm Slim PROII Neutral Density MC ND Filter Kit ND8 ND64 ND1000 + Step Ring + Tortoise Case HD4547-82 : Electronics