Hoya ProND EX 1000 Filter (77mm, 10-Stop) XPD-77NDEX1000 B&H
Amazon.com : Hoya Pro ND Kit (8/64/1000) 58 mm, Practical Set with 3 Different Hoya PRP ND Filters for Light Reduction, Neutral Density Filter, ND Filter, Long Time Lighting : Electronics
Hoya PRO ND Filter Kit 8/64/1000 Filterset (55 mm, Neutral density filter) - Galaxus
Amazon.com : Hoya Pro ND Kit (8/64/1000) 58 mm, Practical Set with 3 Different Hoya PRP ND Filters for Light Reduction, Neutral Density Filter, ND Filter, Long Time Lighting : Electronics