Firmware update for Canon EF/ Contax 645 to Fuji GFX Smart Adapter (Windows)

Firmware upgrade for Contax 645 to Fuji G-mount and Canon EF to Fuji G-mount T Smart Adapter and Smart Expander 1.26x

RELEVANT PRODUCTS

This information is for the following models:

• Canon EF to Fuji GFX T Smart Expander 1.26x (MB_EPEF-FG-BT1)

• Canon EF to Fuji GFX T Smart Adapter^TM (MB_EF-FG-BT1)

• Contax 645 to Fuji GFX Smart Adapter^TM (MB_C645-FG-BM1)

Disclaimer: These release notes only highlights significant changes to the firmware. There may have been other changes that are not documented.

ABOUT THIS DOWNLOAD

• Name: Firmware update V1.70 (#2001) for EF-FG T Smart Expander 1.26x/ Smart Adapter^TM
• Release date: 1 Sept 2025
• Benefits and improvements: 
  • Fixed issue with occasionally inaccurate focal length in EXIF when certain zoom lenses are used.
  • After updating EF-GFX Smart Expander or Smart Adapter to v1.60, Metabones App gives an error when trying to upgrade or downgrade to another version. Attach USB while holding down the push button on the adapter to update to v1.70.

• Name: Firmware update V1.10 (#1403) for C645-FG Smart Adapter^TM
• Release date: 26 April 2024
• Benefits and improvements: 
  • Fixed Incorrect EXIF focal length with Vario-Sonnar 4,5/45-90 lens

FIRMWARE HISTORY: 

• More firmware history can be viewed in the archive: here

​SYSTEM REQUIREMENTS:

Operating Systems

The latest version of the firmware update is compatible with most commonly-used versions of Microsoft Windows:

• Windows® 10 1809 or newer (64-bit)
• Windows® 11

A micro-USB cable is required to connect the Smart Adapter^TM or Speed Booster® to the computer.

While performing the firmware update, don't disconnect the USB cable, otherwise, the adapter may become inoperable due to sudden disconnection. In most cases, an adapter made inoperable by an interrupted firmware update can be fixed by performing the firmware update again.

Don't connect the adapter to any camara or lens while performing the firmware update.