The Viltrox lens adapter EF-E5 is designed for Canon EF / EF-S series lenses to Sony E-mount series mirrorless cameras. Auto Focus. Supports native and phase focus mode switches is compatible with Sony cameras with full-frame cameras A7 , A9 , APS-C A6000 and above and achieves firmware upgrades through the USB port.
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Seems to work well, auto focus is fast on my Sony A7iii with a 50mm canon F1.4 lens. So far very pleased with the adapter. It gives the opportunity us my canon lenses as well as those that I borrow from family member.