Hontoo 4 4 /4 5.65 Carbon Fiber Matte box (Clamp on) & Lens Adapter Ring For BMPCC 4K 6K. 1x Hontoo 4 4 /4 5.65 Carbon Fiber Matte box (Clamp on). Lens adapter ring specifications are 40.5 to 77, 46 to 77, 49 to 77, 52 to 77, 55 to 77, 58 to 77, 60 to 77, 62 to 77 (standard accessory), 67 to 77 ( standard accessory), 72 to 77 (standard accessory), 74 to 77, 82 to 77 (standard accessory),For 86 to 77, need to clip the matte box (clamp bucket) to the 77 to 95 (standard accessory) lens adapter ring.
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