Imaging recource: Metabones unveils new MFT Speed Booster for Canon EF Lenses

In addition to a firmware update, which now brings full autofocus capabilities to its Canon EF to Panasonic Micro Four Thirds Speed Boosters, Metabones has announced the new Metabones T Speed Booster ULTRA 0.71x adapter. This new adapter increases the maximum aperture by a full stop and makes the lens 0.71x wider than its listed focal range. in line with the recent update, the new Speed Booster now enables complete autofocus control of Canon EF lenses as well as full image stabilization capabilities on comparable lenses. The adapter can be powered by...
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