This is a mount adapter for attaching Canon EF lenses to Sony E-mount bodies. It is a mount adapter that allows you to connect Canon EF to E-mount Mark IV lenses to E-mount cameras. - Brand: metabones - Model: Canon EF to E-mount Mark IV - Type: Mount Adapter - Included items: Case Plus one other item Thank you for viewing. Please check the product's compatible models and uses, and review the images before bidding. Bids are accepted on the understanding of no returns and no claims. Please refrain from bidding if you are overly concerned about details. We strive for prompt, courteous, and pleasant transactions. Thank you for your cooperation until the end of the sale. *Please note that this item is also listed on other sites, so it may be out of stock.