The process of downloading the EF-E Smart Adapter MARK IV Metabones Firmware 0.49 driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the EF-E Smart Adapter MARK IV Metabones Firmware 0.49 driver from the primary server - this is the manufacturer’s Metabones official website). If the download still fails to run, check whether your anti-virus software is not blocking the connection to the manufacturer server of the EF-E Smart Adapter MARK IV Metabones Firmware 0.49 diver.