In 2017, Metabones released a firmware update for its EF-E Speed Booster and EF-E Smart Adapter lines that added a 10 fps maximum continuous autofocus (AF-C) frame rate to the Sony A9. In an announcement today, the company revealed it´s brought that same functionality to the Sony a7 III model.
The latest update brings 10 fps AF-C to the a7 III via firmware version 62 for the EF-E Speed Booster Ultra I and II, EF-E CINE Speed Booster Ultra, EF-E CINE Smart Adapter and the EF-E Smart Adapter IV and V. These products can be updated over USB with firmware version 62 available to download in the Metabones app.
Metabones explains the 10 fps in the `Advanced Mode´ is the theoretical maximum, with both subject movement and the lens AF speed both impacting the actual shooting speed. The company recommends users set the in-camera `Priority Set in AF-C´ to `AF´ for the best accuracy and hit rate, but warns that it will come with a decrease in frame rate.
The company says older adapter models can be updated to firmware version 62, as well, including the original EF-E Smart Adapter I and II launched in 2012 and the EF-E Speed Booster launched in 2013. These older models don´t feature USB ports, however, so customers will require factory service to get the upgrade. As well, these models will only work in APS-C mode.
Owners of these discontinued products must contact Metabones customer service about upgrading. The company´s firmware downloads can be found here.
Press release:
Metabones® Firmware Pushes A7 Mark III Maximum AF-C Frame Rate up to 10 fps
Vancouver, Canada, June 24, 2019 - Two years ago, Metabones® added support for Sony A9 with a maximum continuous autofocus (AF-C) frame rate of 10 fps by firmware to its EF-E Speed Booster® and EF-E Smart AdapterTM lines of fully-electronic adapters. Today, the same feat is extended to A7 Mark III.
How to upgrade:
EF-E Speed Booster ULTRA I/II, EF-E CINE Speed Booster ULTRA, EF-E Smart Ada ...
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