Commlite Speed Booster AEF-MFT I was planning to attach it to my BMPCC and have some fun, but I ended up selling the BMPCC without ever using it in a real situation, and I left the adapter unused without attaching any lenses. This is a mount adapter that allows you to attach Canon EF lenses to Micro Four Thirds cameras. The Commlite has a magnification of 0.71x. There is no clouding or scratches on the lens surface, and the mount can be attached and used smoothly.