This was taken with the ED80 and WO 0.8 FR and flattener (again
) and 300D on a GM8 autoguided with a ToUcam 900 through a 60mm Carton refractor (f/7) in side by side arrangement.
Focused with DSLR Focus, autoguided with K3CCDTools V3 and interfaced with the trusty ol' StarMate. Exposure also controlled using the StarMate:- 9/300sec@ISO800 @ f/6, dark subtracted and average combined in Images Plus and curved, leveled and otherwise processed in PS.