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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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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
Metabones Speedbooster ultra 0.71x T EF-m43 adapter with old 10-22 EF-S: Micro Four Thirds Talk Forum: Digital Photography Review
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