Release notes archive for EF-RF (EOS R)

FIRMWARE HISTORY (archive) for EF-RF (EOS R) Speed Booster® / EF-EFM (EOS M) Speed Booster®

• Name: Firmware update V2.30 (#1799) for Canon EF to RF (EOS R) T Speed Booster® ULTRA
• Release date:  24 Apr 2025
• Benefits and improvements: 
  • Fixed compatibility issue with RED Komodo X firmware v2.0.3. 
  • Fixed issue with computer not going to sleep while Metabones App is left open.

• Name: Firmware update V2.20 (#1705) for Canon EF to RF (EOS R) T Speed Booster® ULTRA
• Release date:  7 Feb 2025
• Benefits and improvements: 
  • Fixed issue with stuck aperture when Canon CN-E 18-80mm T4.4 Cinema EOS lens is used on RED Komodo. 
  • Fixed wrong F0.7 aperture display with some lenses on RED Komodo.

• Name: Firmware update V2.10 (#1341) for Canon EF to RF (EOS R) T Speed Booster® ULTRA
• Release date:  19 Mar 2024
• Benefits and improvements: 
  • Fixed compatibility issue with RED Komodo X

• Name: Firmware update V2.00 (#1251) for Canon EF to RF (EOS R) T Speed Booster® ULTRA
• Release date:  15 Nov 2023
• Benefits and improvements: 
  • Fixed optical image stabilization (OS) issue of the Sigma lens on RED Komodo

• Name: Firmware update V1.90 (#1219) for Canon EF to RF (EOS R) T Speed Booster® ULTRA
• Release date:  7 July 2023
• Benefits and improvements: 
  • Fixed autofocus issue with CN-E Lens on EOS C70

• Name: Firmware update V1.80 (#745) for Canon EF to RF (EOS R) T Speed Booster® ULTRA
• Release date: 26 August 2022
• Benefits and improvements: 
  • Fixed compatibility issue with Tamron SP 35mm f/1.4 Di USD (Model F045).
  • Fixed an infrequent, intermittent stability issue with EF 50mm F/1.8 STM, EF 85mm F/1.2L II USM and many other lenses on EOS R.
  • Fixed compatibility issue with Canon EF 70-200mm f/2.8L II with RED Komodo.

• Name: Firmware update V1.70 (#551) for Canon EF to RF (EOS R) T Speed Booster® ULTRA
• Release date: 12 January 2022
• Benefits and improvements: 
  • Fixed: compatibility issue with Canon EF 70-300mm f/4-5.6 IS II USM

• Name: Firmware update V1.30 for Canon EF to EF-M (EOS M) T Speed Booster® ULTRA
• Release date:  29 Oct 2021
• Benefits and improvements: 
  • Fixed wrong lens firmware version display with Canon EF 8-15mm F4L USM Fisheye lens.
  • Fixed: Focal length should not display as 35mm equivalent in APS-C format on Canon EF 70-300mm f/4-5.6 IS II USM's LCD screen but in full-frame format instead.
•  
• Name: Firmware update V1.60 (#420) for Canon EF to RF (EOS R) T Speed Booster® ULTRA
• Release date: 28 June 2021
• Benefits and improvements: 
  • Fixed the compatibility issue with certain Tamron lenses such as SP 45/1.8 VC USD. 

• Name: Firmware update V1.50 (#381) for Canon EF to RF (EOS R) T Speed Booster® ULTRA
• Release date: 11 June 2021
• Benefits and improvements: 
  • Add support for EF70-200mm F4L IS II USM, Laowa 100/2.8 Macro and Sigma 18-35 T2 CINE on Canon EOS C70.
  • Add support for RED Komodo Camera. Please check with RED on the compatibility of your EF mount lens with your Komodo camera. Some Tamron lenses may not work. Some lenses may have corner vignetting when used with Speed Booster ULTRA because Komodo's sensor is larger than APS-C.
  • This firmware has a known compatibility issue with certain Tamron lenses such as SP 45/1.8 VC USD. We will address this issue with v1.60. Tamron users are advised to stay with v1.40 for now and wait for v1.60 before upgrading.

• Name: Firmware update V1.40 for Canon EF to RF (EOS R) T Speed Booster® ULTRA
• Release date: 11 March 2021
• Benefits and improvements: 
  • Fixed: compatibility issue with Canon EOS R5/R6 and C70
  • Fixed wrong lens firmware version display with Canon EF 8-15mm F4L USM Fisheye lens 

• Name: Firmware update V1.30 for Canon EF to RF (EOS R) T Speed Booster® ULTRA
• Release date: 01 Sept 2020
• Benefits and improvements: 
  • An option is added to completely turn off auto-cropping for any lens

• Name: Firmware update V1.20 for Canon EF to EF-M (EOS M) and EF-RF (EOS R) T Speed Booster® ULTRA
• Release date: 09 Jan 2020
• Benefits and improvements: 
  • Add support for film-era Sigma lenses which would have given an Err-01 when used with Canon's own adapter when a picture is taken at any aperture other than wide open.
  • Faster autofocus for Canon EF70-200mm f/4L IS II USM at 200mm.
  • Fixed scenario where a third-party extension tube or teleconverter is used on Metabones, manual lens EXIF emulation (aka 'chip') is turned on, and an electronic lens is subsequently mounted on the third-party extension tube or teleconverter, Speed Booster will now correctly talk to the lens instead of remaining in manual lens EXIF emulation. A lens reset by pressing and releasing the lens lock button of the Speed Booster is still recommended.
  • Add support for camera firmware versions EOS R 1.6.0 and EOS M50 1.0.3

• Name: Firmware update V1.10 for Canon EF to EF-M (EOSM) T Speed Booster® ULTRA
• Release date: 22 June 2019
• Benefits and improvements: 
  • Improved startup time by 0.08s
  • Fixed compatibility issue with Tamron 10-24/3.5-4.5 VC HLD B023E. (Reminder: APS-C lenses are used with Speed Booster to mitigate the 4k video crop. The image circle is not big enough to cover the entire sensor for full HD video or still photography.)
  • Fixed issue with MaxAperture field missing from EXIF when a f/1.4 lens is used.

• Name: Firmware update V1.00 for EF-EFM (EOSM) T Speed Booster® ULTRA
• Initial date: 02 May 2019