Metabones Speed Booster (EF to E-Mount) adaptor

If I was a genius, I would have started this company… But alas, I digress… Metabones has become the benchmark in prosumer adaptors thanks to the Speed Booster. Besides allowing you to use Canon EF glass on Sony E-mount cameras, such as the FS7, it gives you an extra stop of light and reduces the crop factor from about 1.55x to 1.07x – giving a full frame view on an APS-C sized sensor.