Metabones Canon EF to E mount T Mark IV This adapter allows you to attach Canon EF lenses to a Sony α7 camera. I received this as an included item when I purchased a used Sony α7s2. However, I don't own any Canon EF mount lenses, so I have no opportunity to use it, and am therefore putting it up for sale. According to the previous owner, it was working without any issues. Thank you. 【Brand and Model】 The Metabones EF-E mount T is an adapter for connecting Canon EF lenses to Sony E-mount cameras. 【High Compatibility】 This adapter provides compatibility between various Canon EF lenses and Sony E-mount cameras, maximizing the performance of the lenses. 【Convenient Connection】 Equipped with USB-micro, firmware updates are possible. This allows you to utilize the latest features. - Brand: metabones - Model: EF-E mount T - Connection Terminals: USB-micro - Accessories: Box, Case Thank you for viewing.