Fringers latest Firmware 1.50 for the Fringer EF/FX Smart Adapter Firmware looks very impressive in the above official AF-C demo video, but there are additional improvements listed below.
2018/3/31 Version 1.50
1. Bug fixed: For some lenses, there is a lag in the viewfinder when start to focus.
2. IS working modes changed for the following lenses to fix the unstable IS issue. Their IS function will always be activated as long as IS switch is on.
1) EF 100/2.8L IS
2) EF 70-200/4L IS
3) EF 70-200/2.8L IS II
4) SIGMA 150-600/5-6.3 OS Contemporary
3. Re-optimized following lenses to improve their PDAF accuracy and AF-C tracking performance:
1) EF 100-400/4.5-5.6L IS II
2) EF 70-200/2.8L IS II
4. Added following lenses to the tested and optimized lens list:
1) SIGMA 24-35/2 Art
2) EF 70-200/2.8L IS II + 1.4X
3) EF 70-200/2.8L IS II + 2X
4) EF 70-200/4L IS + 1.4X
You can download the update here.
Via FringerDev