Metabones Speed Booster 0.71x Adapter for Contax/Yashica CY-Mount Lens to MFT (Micro Four Thirds) Body (MB_SPCY-M43-BM1) with Support Foot at KEH Camera
Metabones Contax Yashica to E-mount Speed Booster Ultra 0.71x – DigitalRev Store
Metabones Contax Yashica CY Lens to Canon RF-Mount Speed Booster ULTRA 0.71x CINE - Photospecialist
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Micro 4/3 Metabones Speed Booster Now Shipping for Leica R & Contax Lenses