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Viltrox's new $199 EF- to E-mount 'smart adapter' has built-in OLED display, full AF/EXIF support and more: Digital Photography Review
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Amazon.com : EF/EF-S Lens Mount Adapter Compatible with Canon EF/EF-S Lens for Sony E Mount Mirrorless Cameras Series A9 A7R4 A7R3 A7R2 A7M3 A7M2 A7R A7S2 A7S A7 A7C, Auto-Focus Lens Converters
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