For users of Takahashi, C8, and C11 telescopes: The new EAF and EAF Pro is not fully compatible with the 5mm flexible coupler. We strongly recommend using the 4mm flexible coupler for proper installation.
Support List:
Takahashi FSQ85
Takahashi FSQ106 (except for the first generation)
Takahashi TOA-130NFB
Mechanical diagram：
