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Amazon.com : VILTROX EF-E II 0.71x Auto Focus Reducer Speed Booster Adapter for Canon EF to Sony E-Mount Camera a9 a7r iii a7r ii a7iii a7s a6500 a6300 : Electronics
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Metabones T Speed Booster Ultra 0.71x Adapter for Canon Full-Frame EF Mount Lens to Micro Four Third
Metabones ULTRA Speed Booster Adapter with Support Foot for Canon EF-Mount Lens to Sony E-Mount (MB_SPEF-E-BM2) at KEH Camera
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Metabones T II ULTRA Speed Booster T 0.71x Adapter with Support Foot for Canon EF-Mount Lens to Sony E-Mount (MB_SPEF-E-BT4) at KEH Camera
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