B.way s-one 100mm square filter holder system
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Product Featured: B270 Schott glass HD, multi-layer enhanced transmission waterproof coating, waterproof and antifouling, scratch-resistant, low color cast,high transparent light, Independent Polarizer Filter Manual Rotating Gear Adjustment , GND Filter can be adjusted freely , Independent Button Control on Holder ( Inner , middle , outer )
Video
https://www.youtube.com/watch?v=xvXwBS2rD1k&t=4s
