Metabones firmware v2.7 (E-Mount v0.56) adds support for Panasonic Lumix GH5 and Canon 18-80mm T4.4 L IS KAS S lens to Metabones EF mount Speed Boosters / Smart Adapters. Metabones Firmware v2.7 Benefits and improvements for Canon EF to Micro Four Thirds Smart AdapterTM/Speed BoosterTM : 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 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 (MB_SPEF-BMCC-BT1) Canon EF-BMPCC T Speed Booster Adapter (MB_SPEF-BMPCC-BT1) Canon EF-Micro Four Thirds Speed Booster (MB_SPEF-M43-BM1) Canon EF-Micro Four Thirds Speed Booster S (MB_SPEF-M43-BM2) Canon EF-Micro Four Thirds T Speed Booster XL 0.64x Adapter (MB_SPEF-M43-BT3) Servo zoom can now be controlled using the wide-tele zoom rocker on supported cameras (i.e. JVC GY-LS300), with a touch screen interface (most Panasonic cameras), or from PlayMemories Mobile App for Sony cameras. For supported Sony cameras, the Record button on the grip of the Canon EOS CN-E 18-80mm T4.4 L IS KAS S lens can be assigned to one of more than 50 functions on the Sony A7 series and other supported cameras. By assigning it to the MOVIE function, the user may start/stop recording and zoom with the lens' hand grip which is handy for a small-form-factor camera like Sony A7R Mark II. Important notice: not every Cinema EOS lens supports every feature. At the time of writing only Canon CN-E 18-80 T4.4 L IS KAS S supports auto iris, autofocus and servo zoom. Both firmware upgrades are available to download from Metabones.