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Discontinued items - Tripod Mount Ring B (B) With Adapter For EF 100mm f/2.8 Macro USM - Canon HongKong
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Canon Tripod Mount Ring B(W) for Canon 70-200mm f/2.8L, 70-200mm f/2.8L IS, 300mm f/4L, 35-350mm f/3.5-5.6L Lens at KEH Camera
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Amazon.co.jp: Ring-On Tripod, Specifically Designed for Nikon AF-S 200-500mm F5.6E ED VR Lens Lenses, All Metal Tripod Mount Ring / Lens Bracket / Support Collar Bottom with ARCA Type Quick Release Plate,
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FOTGA Quick Release Tripod Collar Mount Ring with 1/4" Screw for SIGMA APO 70-200mm F2.8 II EX DG 77mm Camera Lens Photography
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Calandis 81mm lens Tripod Collar Mount Ring C(WII) for Canon EF 70-300mm Tripod - Calandis : Flipkart.com
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Amazon.co.jp: iShoot Camera Ring Tripod Seat, Tripod Mount Ring, Lens Support Collar, Lens Bracket Collar, Tripod Socket, Compatible with Canon Canon EF-EOS R Mount Converter Lens Adapter Ring, Compatible with ARCA-SWISS Head /
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