To solve those unexpect issues between certain Canon EF lens on MFT camera body,our engineer made a improvement and upgrated the firmware to V2.5,the end-users who purchased this adapter can directly download the firware from the link as below,and upgrad the adapter software to V2.5.

This new firmware mainly solved the issues as below,

1.Improve Auto focus performence,especially for those lens have focus distance over 135mm

2.Support JVC 4K MFT mount camera LS-300 to realize auto-focus function

3.When lens switch from MF to AF,go to far focus

4.solved distortion issue

download link: