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Metabones Speed Booster "S" Version 0.71x Adapter for Canon EF-Mount Lens to MFT (Micro Four Thirds) Body (MB_SPEF-m43-BM2) with Support Foot at KEH Camera
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Amazon.com : 7artisans EF-FX Lens Adapter Auto-Focus Lens Speedbooster Converter Ring Compatible for EF/EF-S Mount,Sigma Lens Mount and Fuji X Mount Mirrorless Camera Lens : Electronics
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The Wait is Over! Metabones Releases Micro Four Thirds to EF Speedbooster - The Beat: A Blog by PremiumBeat
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EF-R3 EF/EF-S Lens Mount Adapter 0.71x Speed Booster Auto Focus Lens Mount Adapter for EOS EF Mount Lens to EOS RF Mount Cameras EOS C70 R5 R6 R3 R7 R10 RED Komodo -
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Viltrox Ef-m2ii 0.71x Speed Booster Focal Reducer Lens Adapter Auto Focus For Canon Ef Lens To M43 Mount Camera Gh4 Gh5 Gf6 - Lens Adapter - AliExpress
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