The SIGMA MOUNT CONVERTER MC-11 is a mount adapter that expands lens compatibility. It can be used to attach Canon EF-mount lenses to Sony cameras (E-mount). It also supports autofocus. I purchased it in 2018 and used it for several years, but have since stored it. The code is missing, so it is not included. - Brand: SIGMA - Model Name: MOUNT CONVERTER MC-11 - Accessories: Instruction manual - Features: Mount adapter - Notes: No code https://s.kakaku.com/item/K0000858178/?cid=shop_google_dsa_0003&gad_source=1&gclid=CjwKCAiA2JG9BhAuEiwAH_zf3hn2CqStsdsuVmnnASkcJXkWg0jqAv0tel6OPiek4YYY0VW_KljovxoC5f8QAvD_BwE Thank you for viewing.