REVIEW : The Metabones Speedbooster Ultra
/I was recently doing a long term evaluation on Sony's awesome PXW-FS7 video camera and wanted to see how using my Canon L series glass on the camera would work out. There are many mount converters available to mount alternate brand lenses on the Sony E mount, but the only one that said it would provide both complete aperture control as well as Autofocus was the Speedbooster Ultra from Metabones.
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