You may know Vintage Lenses on Twitter or by the other account Budget Filmmaker.
Well they tested the cost effective Zhongyi Lens Turbo II and the Metabones Speed Booster under pretty much the same conditions for a head to head look see.
How did they do?
Zhongyi Lens Turbo II on Ebay: http://goo.gl/BQgDhT
Metabones Speed Booster on Ebay: http://goo.gl/C9gomj
I have over 100 vintage lenses to test, please SUBSCRIBE to make sure you don’t miss the upcoming test videos.