MANUAL ADAPTER Automatic functions are not supported with this adapter. You need to manually adjust focus and exposure settings SNUG FIT Meticulously machined for a snug, light-sealed and secure connection. Back by our lifetime warranty NEW COMBINATIONS Combine any Canon (EF / EF-S) mount lens with any Sony E mount camera and explore new lens combinations CLEVER DESIGN Easy to mount and dismount. Machined from hardened aluminium and copper, coated in an anti-reflection matte finish PLANT 5 TREES This Urth adapter funds local communities to plant 5 trees in areas affected by deforestation The Manual Lens Mount Adapter for Canon EF/EF-S-Mount Lens to Sony E-Mount Camera Body from Urth makes it possible to explore new lens and camera body combinations. It is made of machined aluminum for a snug, light-sealed, and secure connection. Electronic communications and automatic functions are not supported with this adapter, focus and exposure settings may be manually adjusted.