It was only a couple of weeks ago that the Viltrox 0.71x smart m43 focal reducer became widely available through eBay for the stunning introductory price of only $159 including shipping from HK to North America (Toronto for me). It follows the optical prescription of the original Metabones Speedbooster with 4 lenses in 4 groups and … Continue reading Viltrox EF-M2 Adaptor Tested!
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