Ricardo Garcia Mainou
The adaptor works as advertised (except for the LED light that never lit up). My lenses focus fine, even on AF-C. Tried it on Canon EF 40mm, EF 75-300 mm and EF 50mm 1.8. All focus well, the later will do Eye Autofocus too. Best thing, the 75-300 benefits also from the body IBIS, so shooting at slow speeds handheld works much better than in my Canon body. Tried it in low light. Older lenses hunt a bit to focus, but the very recent 50mm 1.8 was very quick and spot on focus. My only caveat for the adaptor would be that to update Firmware you need a dock that has to be purchased separately. I would have been good to know that in advance. The rest of the free stuff in the pack look good enough and all arrived well packed and brand new. I still have a few EF-S lenses to try, but I wanted it mostly for the Full Frame lenses and they work better than expected. Update* I remove one star because of a design flaw. The adaptor has a port to update the firmware. This port is located on the right side of the adaptor and has a plastic cover. Both are located right next to the cameras grip in an already tight place. During use, your fingers will constantly be rubbing against the plastic that covers the port.