The Takahashi TKP27110S was originally designed for the shorter Sky 90, but also works with the FSQ-85 and the FSQ-106EDX when certain 50.8mm accessories come after it, such as the Extender QE, the Takahashi TET0002 or 2L Extension Tubes, a 2" diagonal mirror, etc.

• Originally designed for the shorter Sky 90
• Works with the FSQ-85 and the FSQ-106EDX when certain 50.8mm accessories come after it

• Takahashi 2" Visual Adapter