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SmallRig Screw-In Reduction Ring Set with Filter Thread (67mm/72mm/77mm/82mm/86mm-114mm) for Matte Box 2660 3410
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Amazon.com : SMALLRIG Lightweight Matte Box for Mirrorless DSLR Cameras Compatible with 67mm/ 72mm/77mm/82mm/114mm Lens - 2660 : Electronics
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Amazon.com : SmallRig Mini Matte Box Lite, DSLR Matte Box with Carbon Fiber Top Flag, for 67mm/72mm/77mm/82mm/95mm Lenses, for 4x5.65 Filter/Circular Filter - 3575 : Electronics
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SmallRig Mini Matte Box Lite DSLR Matte Box for 67mm/72mm/77mm/82mm/95mm Lenses 6941590007342 | eBay
Amazon.com : TILTA Tiltaing Mini Matte Box MB-T15 with Four Lens Adapter Rings (82mm, 77mm, 67mm, and 72mm) Suitable for DSLR mirrorless Style Cameras : Electronics