Amazon.com : PROfezzion 49mm ND1000 Filter [10 Stop] Fixed ND Filter Ultra-Slim & Multi-Coated Neutral Density Filter with Nano-X MRC Effect for Sony FE/Canon EOS M50 M50 Mark II M5 EF-M Lens :
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Kase Wolverine 49mm Magnetic Variable ND 1.5-10 Stop with Magnetic Adapter Ring | 1121250019 | Kase Filters USA
NiSi SWIFT FS ND Filter Kit with ND8 (3 Stop), ND64 (6 Stop) and ND1000 (10 Stop) for 40.5mm | 43mm | 46mm | 49mm Filter Threads + Case | NiSi Optics USA