NiSi 150 x 150mm Nano IRND 1.8 Filter (6-Stop) NIP-150-ND1.8 B&H
NiSi 150mm Q Filter Holder For Canon EF 14mm F/2.8L II USM (Discontinued) | NiSi Optics USA
Baader AstroSolar telescope solar filter, 150mm
Amazon.com : NiSi 150mm Filter Holder (for Nikon 14-24mm Lens) Black (NIP-FH150-N1424) : Electronics
Square Filter Pouch | Camera Lens Filters - KENTFAITH
NiSi S6 ALPHA 150mm Filter Holder and Case for Canon RF 10-20mm f/4 L IS STM | NiSi Optics USA
Amazon.com : NiSi S6 Alpha 150mm Filter Holder Kit for Sony FE 14mm f/1.8 GM - Holds 2X Size 150x150mm and 150x170mm Filters, Includes Storage Pouch, No Vignetting, 360-Degree Square Filter Rotation :
Amazon.com : NiSi 150mm Filter Holder (for Nikon 14-24mm Lens) Black (NIP-FH150-N1424) : Electronics
Whatman 1541-150, Grade 541 Ashless Fast Filter Paper, 150 mm circles (100 pcs)