Cheers Gary... Yea I remember you telling me that its very critical to get it between what was it 52 ~ 56mm distance from the sensor..
Before I go and buy spacers I'll have to find out the specifics of my new camera, as the Orion star shoot pro is slightly different to the QHY8 in design, and I think the sensor is a little closer... I'll work it out...
You're actually the person who gave me the idea of using a MPCC rather than a reducer.. I remembered you saying you use one with your TMB 80/480.. (Which I still want, and call first dibs on if you ever decide to sell!!

)
I'll have a fiddle on the weekend at 10 chain hill with either Roberts or JJJ's MPCC, see if its a viable option, and if so I'll be getting one from Peter Tan in the near future...
Cheers.
Alex.