Metabones EF-E mount T adapter, ideal for improved lens compatibility. - Model Name: EF-E mount T - Brand: Metabones - Included: Case I no longer have a use for it due to a camera upgrade, so if anyone is interested in using it, please do! Operation is, of course, not a problem, but since this is a used item, I cannot 100% guarantee its operation with the buyer's camera. Thank you for your understanding.