This adapter fits on the rear cell of the 127, 150 and 180mm Maks
from Orion and Skywatcher to allow the use of your 2″ and T-thread
accessories. Adapter has male SCT Schmidt threads that accept
SCT focal reducers, adapters and diagonals. While the Maks don’t
have a 2″ light path, you can now use your existing goodies with
the scope.
The ring is shown silver on the Starmax 127 for clarity, but is black
anodized aluminum.
Interior is threaded for light baffling, 0.6″ height,
2.1″ max diameter. 
Telescope and diagonal not included!
Does not fit Meade ETX’s or some Celestron Maks, but does fit the
Celestron C90 Mak and Nexstar 127 SLT Mak. Check the diameter of
your scope’s male threads, #SMSA fits 44.5mm threads.
Does not fit new style Skywatcher 180mm Maks with 66mm diameter
visual back!  Measure your scope threads!
Does not fit Bosma Maks.
Price includes shipping in the USA!