Bests & Worsts Reviews from Amazon

On the a6300, having used the Metabones and Commlite adapters, this thing is far, far better. While it only officially supports Sigma EF mount lenses, I have found that a number of Canon lenses work as well (however, you will only have AF-S and AF-C modes). For example, the Canon 50mm 1.4 USM, which doesn't work at all on the Metabones or Commlite, works on the MC-11 quite well. You can even get a degree of focus tracking by setting your shot priority to AF and choosing AF-C (Wide seems to work best). No, it's not what you'd get from a Sony native lens, but it's quite usable. My Canon 70-300mm IS USM takes comparable images, and performs almost as well in AF as the Sony G 70-300mm. Certainly there are reasons to buy the Sony, but for most, this would an effective bridge. On supported lenses like the Sigma 150-600mm Contemporary, I have to say it's almost like using a native lens. I say almost because under normal shooting conditions I wouldn't be able to tell the difference; some native lenses perform far worse, some better. I have tested the adapter with these non-Sigma lenses (assuming AF-S or AF-C mode) - Canon 24mm IS USM - Works Canon 40mm STM - Works Canon 50mm 1.4 USM - Works Canon 18-135 IS USM - Does Not Work Properly Canon 70-300mm IS USM - Works Canon 75-300mm IS USM - Does Not Work Properly Sigma 150-600mm Cont - Feels like a native lens. Quick update - I shot a lot of pics at the Indy 500 this weekend using the a6300 and the Sigma 150-600mm Cont. The combination performed quite well, but you really have to know your AF modes to get the best performance. The only negative I can think of is that it doesn't support EF-S lenses, which is a shame and the only reason I have to hang onto my Commlite adapter. PS - If this review helped, or if you're just bored and enjoy clicking things - could I trouble you for a "Yes" vote below?