NiSi 72mm Nano IR Neutral Density Filter ND1000 (3.0) 10 Stop - Jim Patterson Photography
Galaxy Professional Camera Lens Filter 72mm Tripod Hole Cold Shoe GP-XVU021SAQBK | eBay
Spectrum 72 mm Threaded Optical Solar Film Filter
72mm ND2-400 (9 Stops) Variable ND Filter Neutral Density Adjustable Filter for Canon Nikon DSLR Cameras - KENTFAITH
Amazon.com : B + W 72mm UV Protection Filter (010) for Camera Lens – Standard Mount (F-PRO), MRC, 16 Layers Multi-Resistant Coating, Photography Filter, 72 mm, Clear Protector : Camera Lens Sky