Metabones Firmware Update V0.60 Now Available

Metabones firmware update V0.60 for Metabones Smart Adapter IV/V and EF-E Speed Booster ULTRA 0.71x are now available.


  • Name: Firmware update V0.60 for EF-E Smart AdapterTM MARK IV/V and EF-E Speed BoosterTM ULTRA
  • Release date: 22 Mar 2019
  • Benefits and improvements:
    • AF reliability improvement and hunting reduction.
    • Support for “AF Stop” button on some Canon super-telephoto IS lenses as a customizable button which can be assigned to any of the more than 50 functions available using the ‘Focus Hold Button’ menu item on A6300, A6500, any A7 series camera and A9.
    • For CINE Smart Adapter (MB_EF-E-BT6) only, 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 using PlayMemories Smart Remote Control App or the zoom rocker switch on some Sony cameras. 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 to the lens and/or the Speed Booster 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 55/1.4 and 85/1.4. (The EXIF lens name feature is not available for Mark I, Mark II, Mark III and the original Speed Booster, and is not supported by older Sony cameras.)
    • Fixed EXIF LensInfo field for Canon EF 70-200/4L IS II USM and Canon EF Extenders.
    • 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 since 2017 (in the same download). Within Metabones App you may select which version to downgrade to. Should you require even older versions please email

Windows: Download Here
Mac: Download Here

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