[bojan]

Being in lock-down again, I was thinking to use the time and try to design OAG over weekend(s)...

Something made of machined (on lathe) 2-3mm aluminium plates and tubes, held together with 3 screws and spacers.. Overall thickness could be 14 mm.

There could be a lot of freedom for mirror and camera adjustment between spacers.
Threads should be dimensioned for mounting on C11.

Just an idea...