Firmware update for EF-M43 (Windows)

Firmware upgrade for Canon EF-Micro Four Thirds Smart Adapter^TM

RELEVANT PRODUCTS

This information is for the following models:

• Canon EF-BMCC T Speed Booster® Adapter (model : MB_SPEF-BMCC-BM1/MB_SPEF-BMCC-BT1)
• Canon EF-BMPCC T Speed Booster® Adapter (model : MB_SPEF-BMPCC-BM1/MB_SPEF-BMPCC-BT1)
• Canon EF-BMPCC4K T Speed Booster®  ULTRA 0.71x Adapter (model : MB_SPEF-m43-BT8/CINE: MB_SPEF-m43-BTA)
• Canon EF-BMPCC4K T Speed Booster®  XL 0.64x Adapter (model : MB_SPEF-m43-BT9/CINE: MB_SPEF-m43-BTB)
• Canon EF-Micro Four Thirds Smart Adapter^TM (model : MB_EF-M43-BM1)
• Canon EF-Micro Four Thirds Speed Booster® Adapter (model : MB_SPEF-M43-BM1)
• Canon EF-Micro Four Thirds Speed Booster®  S Adapter  (model : MB_SPEF-M43-BM2)
• Canon EF-Micro Four Thirds T Smart Adapter® (model : MB_EF-M43-BT2)
• Canon EF-Micro Four Thirds T Speed Booster®  ULTRA 0.71x II  (model : MB_SPEF-M43-BTC)
• Canon EF-Micro Four Thirds T Speed Booster®  XL 0.64x II  (model : MB_SPEF-M43-BTD)
• Canon EF-Micro Four Thirds T Speed Booster®  ULTRA 0.71x  (model : MB_SPEF-M43-BT4/CINE: MB_SPEF-M43-BT5)
• Canon EF-Micro Four Thirds T Speed Booster®  XL 0.64x  (model : MB_SPEF-M43-BT3/ CINE: MB_SPEF-M43-BT6)
• Canon EF-Micro Four Thirds T Speed Booster®  SUPER16 0.58x  (model : MB_SPEF-M43-BT7)

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 V4.20 (#1672) for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster® 
• Release date: 22 Nov 2024
• Benefits and improvements: 
  • Fixed issues with manual lens EXIF ('chip') emulation function (Smart Adapter II and CINE Smart Adapter only)
  • Remove the ability to toggle the option "Combine OIS and ES for Panasonic; legacy AF for Olympus; disable AF for Blackmagic" by power-cycling the camera while keeping the jog lever depressed inward the whole time, which used to allow the user to change the option in the field without a computer in previous versions up to v4.10. Starting with v4.20
  • Metabones App is the only way to change the said option. Metabones App's downgrade feature now permits changing options that are not already set to their default values, while options already at their respective default settings remain greyed-out. The reason for this change is primarily to ensure that the "Combine OIS and ES for Panasonic" option can still be disabled in the downgrade use-case scenario.
  • Fixed exposure metering issue with Sigma 18-35T2 CINE lens
  • Fixed live-view blackout while using C-AF at high frame rate on OM-1
  • Fixed aperture display and control issues with EF70-200/4L IS II USM lens
  • Fixed compatibility issue with Laowa 100mm f/2.8 Micro
  • PDAF AF-C performance improvement on Panasonic, especially in still photo mode, and motor noise reduction

FIRMWARE HISTORY

• Name: Firmware update V4.10 (#1501) for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster® 
• Release date: 12 Jul 2024
• Benefits and improvements: 
  • Support AF-C and phase-detection autofocus on Panasonic G9 II; other recent cameras may also gain autofocus performance. Please ensure the checkbox "Combine OIS and ES for Panasonic" is unchecked in Metabones App.
  • Added EXIF names of some Zeiss lenses.
  • Fixed AF-S misfocus issue on Olympus E-M1 camera.
  • Fixed stability issue with EF50/1.4 USM.

• Name: Firmware update V4.00 (#1299) for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster® 
• Release date: 15 Nov 2023
• Benefits and improvements: 
  • Improved AF accuracy with older lenses that do not report distance information

• Name: Firmware update V3.9 (#1126) for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster® 
• Release date: 19 April 2023
• Benefits and improvements: 
  • Fixed the compatibility issue of Canon Cinema EOS CN-E 18-80mm T4.4 L Compact Servo lens on Blackmagic Pocket Cinema Camera 4K;
  • Fixed the compatibility issue of Sigma 50/1.4 Art 

• Name: Firmware update V3.8 (#947) for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster® 
• Release date: 15 December 2022
• Benefits and improvements: 
  • Fixed rare issue of inoperative aperture control on GH5;
  • Fixed incorrect operation of auto iris function with BMPCC4K camera and certain lenses;
  • Added support for the zoom control of Canon Cinema EOS CN-E 18-80mm T4.4L Compact Servo lens on Blackmagic Pocket Cinema Camera 4K using ATEM Software Control. Canon EF-S 18-135mm f/3.5-5.6 IS USM (Nano) + Power Zoom Adapter PZ-E1 will work, too;
  • Improved initial calibration of lenses with very slow AF on Olympus cameras.

• Name: Firmware update V3.7 (#588) for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster® 
• Release date: 07 January 2022
• Benefits and improvements: 
  • Fixed: when the AF/MF switches of certain Sigma lenses are set to the MF position focus distance shall not move when the camera is turned on.
  • Fixed: lens Attachment Failed with Tamron SP 150-600mm F5-6.3 VC USD (A011).
  • F5-6.3 new Sigma and Tamron lenses now shows the maximum aperture correctly.

• Name: Firmware update V3.6 for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster® 
• Release date: 11 March 2021
• Benefits and improvements: 
  • Fixed: with Speed Booster XL 0.64x and certain f/1.8 lenses such as Tamron SP 45/1.8 F013 and EF50/1.8 STM, the aperture setting is stuck at and unable to move away from f/1.2 in aperture priority and manual exposure modes
  • Fixed: in movie mode, when Panasonic camera set to f/1.2, aperture diaphragm not fully open with EF 50mm f/1.8 STM or Tamron SP45mm f/1.8 and EF-MFT Speed Booster XL 0.64x
  • Fixed: "Lens Attachment Failed" error with EF 50mm F/1.8 STM lens on Panasonic cameras and EF-MFT Smart Adapter. 

• Name: Firmware update V3.5 for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster® 
• Release date: 01 Sept 2020
• Benefits and improvements: 
  • Fixed touch AF misfocus regression on GH5. 
  • Add iris display for Sigma CINE 18-35/1.8 T2.0 on JVC and Panasonic. At the time of writing, Blackmagic and Olympus will not display the iris value because they don't support lenses' aperture rings in general.
  • For diagnostics the firmware version of the lens, if available, is now appended to the EXIF lens name.
  • Sigma 50-100/1.8 DC HSM Art 016, Sigma 135/1.8 DG HSM Art 017 and Tamron 15-30/2.8 VC USD A012 now fixed to perform initial calibration only once. The camera needs to be switched off and in the case of the zoom lens (50-100/1.8) the zoom needs to be rotated back and forth between the wide and the tele end once to store lens calibration data.

• Name: Firmware update V3.4 for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster® 
• Release date: 23 August 2019
• Benefits and improvements: 
  • Fixed issue with BMPCC4K where if lenses are swapped without turning power off autofocus sometimes ceases to function.
  • Fixed issue with using external USB power supply where camera would not connect to the lens again after power-off/power-on without first disconnecting the external USB power source.
  • Add option to combine OIS and Electronic Stabilization (ES) at the same time with supported Panasonic cameras. (However do NOT use with GX8. Click on the question mark [?] next to the option and read the online help for further details.)
  • Continuous AF is now enabled on all Olympus cameras, including in movie mode, except when used with certain Tamron lenses. (Previously only available on the E-M1 series in still photo mode.) However, C-AF may have unsatisfactory speed and accuracy. Many lenses are incompatible with C-AF because they have high latency and they are unable to execute frequent small movements in a timely fashion.
  • On Olympus the custom function button L-Fn can be configured on the camera body (if supported).
  • Stability improvement for Panasonic cameras.

• Name: Firmware update V3.31 for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster® 
• Release date: 22 June 2019
• Benefits and improvements: 
  • With Olympus and Panasonic cameras, when power is turned on, the lens will now return to the same focus position after traversing its focus range. For this to work the "park focus" option needs to be turned off and the lens needs to support distance information.
  • Fixed compatibility issue with lens firmware version 2 of Tamron 10-24/3.5-4.5 VC HLD B023E.
  • Fixed issue with Sigma 50-100/1.8 DC HSM ART 016 and Sigma 135/1.8 DG HSM ART 017 on Blackmagic Pocket Cinema Camera 4K whereas if the lens and Speed Booster or Smart Adapter have been attached first before the camera is turned on there will be no iris display.

• Name: Firmware update V3.20 for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster® 
• Release date: 10 May 2019
• Benefits and improvements: 
  • Fixed occasional maximum aperture detection problem with Tamron 10-24/3.5-4.5 VC HLD B023 lens.
  • EXIF improvement.

• Name: Firmware update V3.10 for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster^TM 
• Release date: 22 Mar 2019
• Benefits and improvements: 
  • Support for "AF Stop" button on some Canon super-telephoto IS lenses as a customizable button on GH5.
  • For Smart Adapter only (MB_EF-m43-BT2/MB_EF-m43-BM1), enhanced support for the EF-S 18-135/3.5-5.6 IS 'Nano' USM + PZ-E1 Power Zoom Adapter combination with power zoom control from the camera body. WARNING: EF-S 18-135/3.5-5.6 IS 'Nano' USM is incompatible with any Speed Booster, even after modification by removing the rear plastic shroud, because the rear element of the lens interferes with the front element of Speed Booster at 18mm (before boost). If PZ-E1 zooms the lens to 18mm by force, serious damage may occur. Restrict use of the EF-S 18-135/3.5-5.6 IS lens to the Smart Adapter without optics.
  • Added EXIF lens names for Sigma 17-50/2.8 EX DC OS HSM, Tokina AT-X 11-20/2.8, Zeiss Otus 28/1.4, 55/1.4 and 85/1.4.
  • Autofocus is enabled for Blackmagic Pocket Cinema Camera 4K but performance may not meet expectation. Some lenses such as Canon EF85/1.2L II USM and Tokina Opera 50/1.4 may require external 5V power to be connected to the micro USB port of the adapter. Blackmagic autofocus may have great difficulty locking onto the target for Canon EF-S 18-135/3.5-5.6 IS STM and Canon EF-S 18-135/3.5-5.6 IS 'Nano' USM.
  • Fixed compatibility issue with Tamron 10-24/3.5-4.5 VC HLD B023E.
  • Fixed EXIF lens name when Canon EF Extender and Kenko Pro300 teleconverters are stacked and used with certain lenses.
  • To promote adoption of the latest firmware we offer assurance that the upgrade is reversible by including all previous versions released in the last 2 years (in the same download). Within Metabones App you may select which version to downgrade to. However, if your firmware is was last updated in 2016 or earlier (version 2.60 or older), Metabones App may advise you that your upgrade will indeed be irreversible and the most you could downgrade was to the beginning of 2017 (version 2.65).

• Name: Firmware update V3.01 for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster^TM 
• Release date: 04 Dec 2018
• Benefits and improvements: 
  • Fixed issue with Speed Booster XL 0.64x and CINE Speed Booster XL 0.64x where certain f/1.8 lenses are mounted on an Olympus camera set to aperture adjustments in 1/3EV increments the aperture setting would get stuck at f/1.2. Firmware for all other MFT products remains unchanged at 3.00 level. Speed Booster XL 0.64x and CINE Speed Booster XL 0.64x are NOT compatible with any camera in the OM-D series at the time of writing. Please refer to their respective product pages for detailed compatibility information.to configure video AF speed/smoothness/noise level.

• Name: Firmware update V3.0 for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster^TM 
• Release date: 12 Mar 2018
• Benefits and improvements: 
  • Addition of a custom function to Metabones App which lets the user to configure video AF speed/smoothness/noise level.
  • Jog lever iris control is deprecated starting with GH5, replaced with a new assignable Fn button feature. On GH5 V2.2 and newer cameras, you may assign a jog lever inward push to any of the functions listed under "Lens Fn Button Setting" under the "Lens/Others" menu. For older cameras, the jog lever on the adapter can be used for iris control on JVC and Panasonic cameras just like before.
  • Fixed AFC stability issue (AFC may still have poor performance and/or accuracy, even when "Focus/Release Priority" is set to "FOCUS", unless the camera supports phase-detection autofocus.)
  • Fixed issue with a legacy lens without distance information focusing to infinity on its own when switched from MF to AF on Blackmagic Pocket Cinema Camera.
  • Fixed focal length display/EXIF of zoom lenses on Kenko Pro300 teleconverter. Blue dot version recommended.
  • EXIF improvement

• Name: Firmware update V2.9 for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster^TM 
• Release date: 14 Sep 2017
• Benefits and improvements: 
  • Fixed IBIS effectiveness issue with EF400/5.6L USM when used in conjunction with EF Extenders.
  • EXIF improvements.
  • New custom function allows user to manually dial-in the multiplier of a teleconverter if it is not automatically detected (e.g. certain third-party teleconverters).
  • Fixed manual focus distance scale display on Panasonic (requires lens with distance information).
  • Tamron 17-50/2.8 VC B005 stability improvement (although still not recommended for use with Metabones).

• Name: Firmware update V2.8 for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster^TM 
• Release date: 26 Jun 2017
• Benefits and improvements: 

  • Fixed smooth iris support for 40/2.8 STM, 50/1.8 STM and Sigma 50-100/1.8 DC HSM Art 016.

  • Fixed AF issue with EF-S 10-18mm f/4.5-5.6 IS STM and EF-S 18-135/3.5-5.6 IS Nano USM lenses.

  • Fixed regression with EF Extender 1.4x not being recognized when used with fixed focal length lenses.
     

• Name: Firmware update V2.7 for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster^TM 
• Release date: 13 Apr 2017
• Benefits and improvements: 

  • Support servo zoom, autofocus and auto iris with Canon CN-E 18-80 T4.4 on Blackmagic, JVC and Panasonic (but not Olympus). AF function may require external 5V power supply into the micro USB port of the Speed Booster/Smart Adapter.

  • GX7 and GX8 may choose IBIS for still photo and OIS for the motion picture by setting the IS switch of the lens OFF, turn on the camera, and then turn on the IS switch of the lens.

  • Improves smooth iris response time with Tamron SP 15-30/2.8 VC USD A012.

  •  Adds GH5 support.

  • An irreversible change will be made to the following products which limits the ability to downgrade to version 2.65 but not any further back, even if you have a copy of an older version of Metabones App: Canon EF-BMCC T Speed Booster Adapter (model number MB_SPEF-BMCC-BM1/MB_SPEF-BMCC-BT1), Canon EF-BMPCC T Speed Booster Adapter (model number MB_SPEF-BMPCC-BM1/MB_SPEF-BMPCC-BT1), Canon EF-Micro Four Thirds Speed Booster (model number MB_SPEF-M43-BM1), Canon EF-Micro Four Thirds Speed Booster S (model number MB_SPEF-M43-BM2) and Canon EF-Micro Four Thirds T Speed Booster XL 0.64x Adapter (model number MB_SPEF-M43-BT3).

• Name: Firmware update V2.6 for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster^TM 
• Release date: 16 Dec 2016
• Benefits and improvements: 

  • Fixed issue with optical image stabilization of the lens turning off if the camera's Pinpoint AF Display menu option is set to PIP and Pinpoint AF is chosen.

  • OIS/IBIS interaction on GX7/GX8/GX80/GX85 is restructured and the "IBIS only" option is removed. Please read http://www.metabones.com/article/of/mft-manual-image-stabilization

  • Fixed compatibility issue with Tamron 150-600/5-6.3 Di VC USD A011.

  • EXIF for unrecognized lenses no longer says 'Metabones', but instead states the lens ID number.

  • For diagnostic purpose, Metabones App displays the name of the lens attached to the Speed Booster or Smart Adapter. This works only if the lens is attached before connecting USB and the adapter's jog lever is not pushed inward while USB is connected.

• Name: Firmware update V2.5 for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster^TM 
• Release date: 4 Nov 2016
• Benefits and improvements: 
  • Fixed IBIS support with Sigma 50-100/1.8 DC HSM Art 016 lens on Panasonic GX7, GX8 and GX80/85.
  • Olympus OM-D E-M1 PDAF improvements.
  • Option to park focus to infinity upon shutdown to shorten its length for storage. Some lenses may disregard this setting but never park focus, and most of these are internal focus lenses which do not require parking. STM lenses always observe the option setting.
  • Changing iris on Panasonic using the adapter's jog lever requires first pushing the jog lever inward to activate. There is a customizable option in Metabones App to get back the previous behavior of activating jog lever iris control whenever the jog lever is pushed in, up, or down. In both cases, jog lever iris control terminates with the control relinquished to the camera body by pushing the lever inward.
  • Fixed an issue with some telephoto zoom lenses not being able to start up at maximum zoom position with EF Extender attached on Olympus cameras.
  • Fixed an AF inaccuracy problem on Panasonic Lumix DMC-GM1 with EF135/2L USM.
  • Fixed issue with Tamron VC USD where autofocus may occasionally become inoperative.

• Name: Firmware update V2.4 for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster^TM 
• Release date: 30 Jun 2016
• Benefits and improvements: (more detail may refer to press release)
  • Added C-AF support for OM-D E-M1. 
  •  Fixed f/8 AF regression since 2.2. 
  •  Fixed stability issue with EF 100-400/4.5-5.6L (Mark I) on Panasonic.           

• Name: Firmware update V2.3 for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster^TM 
• Release date: 23 Jun 2016
• Benefits and improvements: 
  • Support for smooth iris feature of the latest Canon and Tamron SP lenses.
  • Improved Olympus OM-D E-M1 PDAF performance (S-AF only; C-AF not supported).
  •  Turn off OIS when finger is lifted after the shutter release button is half-pressed on Panasonic cameras, if the AF+MF option is configured to ON.
  •  Fixed an intermittent focus inaccuracy issue with Tamron 24-70/2.8 VC USD A007 lens on Panasonic cameras
  •  Fixed iris issue with older lenses on Olympus E-M1.
  • Fixed a focus parking issue after an exposure with some older Canon lenses e.g. EF 50mm f/1.4 USM.

• Name: Firmware update V2.2 for  for Canon EF to Micro Four Thirds Smart Adapter^TM/Speed Booster^TM 
• Release date: 13 Apr 2016
• Benefits and improvements: 
  • Fixed focal length display of Canon EF 8-15mm f/4L USM Fisheye lens on Olympus.
  • Olympus contrast-detect autofocus enhancements.

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® 8.1
• Windows® 10
• Windows® 11

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

DOWNLOAD INSTRUCTIONS

Important notes:

• When performing the firmware update, please don't disconnect the USB cable, otherwise, the adapter may become inoperable due to the sudden power shutdown
• Don't connect the adapter to any cameara and lens when performaing the firmware update.

How to download the firmware updater:

1. Make sure that you are logged on as a user with administrative rights.
2. At the bottom of the page, read the disclaimer and agree to the terms and conditions by clicking on the checkbox. Then, click on the Download button.
3. The download of the [MetabonesApp.exe] file will start.
4. Save the file to the desktop of your computer (recommended). 

RUN THE SOFTWARE

Once the file has downloaded successfully, you're ready to upgrade the Firmware update for the Smart Adapter^TM.

STEP 1: START UP THE Metabones App

1. Close all currently running programs on your computer.
2. Double-click the [MetabonesApp.exe] file you downloaded to start up the Metabones App.
3. Connect your the Smart Adapter^TM to the computer by using the USB-MicroUSB cable.
4. Then, follow the instructions in the Metabones App to update the firmware.