This is the first set up for a narrower field imaging combination: STL-11000M -- Takahashi TOA Extender 1.6 -- Takahashi 67 Flattener. There is an extension tube between the camera and the extender.
This imaging train will achieve an image scale of 1.06 arcsec per pixel. I'll need pretty good seeing to take advantage of that scale but when I get it I'll be prepared!!