https://tinyurl.com/yxzazqyx
Yongnuo announced the world’s cheapest autofocus EF to E adapter:
On Amazon US and EU for just $99 and 95 Euro!
标题主要是提到价格便宜
但仔细看规格
"2 Focus Systems- With focusing system selection switch, support AF focus
system and Mixed-focus system, both focusing systems require camera support
for normal use."
https://i.imgur.com/jR33WiO.png
Sigma MC-11虽棒，但若是光圈f/4.5或f/5.6的镜头，对焦点放在左右边界会无法对焦
如果转接可以混用PDAF与CDAF，这些镜头会更好用
另外，这个转接环也支援EF-S镜头与Fn按钮