CANON DATA BACK A. This is an accessory for Canon SLR cameras (mainly the A-series like the AE-1 and A-1) used to record the date and time on photos. [Operation] The battery lamp lights up. [Included Items] Everything shown in the photos. [Refund Guarantee] ・If there is any discrepancy with the description, we will provide a refund, covering the return shipping costs. Please contact us before completing the review. Used Goods Dealer License: No. 441050002364