The recently released Metabones Speed Booster is a unique lens adapter that promises near-full frame coverage on an APS-C camera and an extra stop of light gathering ability to boot. Intrigued not only by the actual product, but by the potential of the technology behind it, we spent a few days with the Speed Booster, a Sony NEX-6 and our favorite Canon EF lenses. Here’s what we found.
News: Digital Photography Review (dpreview.com)