I don't think I've given my opinion on this adapter yet, but I used it a lot when I switched from Canon EF to Sony e in 2016 while I was waiting to gradually replace my L lenses with G or GM lenses at the time! I have to admit that with my bodies such as the A7M2, the A7R2, the A6000, the A6400 and even the A6500 with which I used it the most, this converter had left me with only very mixed opinions... But that was before I used it with my A7R3A and with my ex. A6600 or my current A6700! I covered a whole event with the A7R3A, the MC-11 and the Canon EF 70-200mm f/2.8 L II IS USM at the end, with, I must admit, very few AF misfires and truly impeccable image quality in the end! So, with bodies from the A7 generation 3 upwards and the A6600, I think I would recommend it, especially with certain Canon L lenses (not all of them). !!!CAUTION!!! It is absolutely not compatible with Canon EFs lenses for APSC !