What EQ mount for SCT C8 and 120mm frac OTAs?

[killswitch (Edison)]

Originally Posted by ian fry

Yeah , just need to get them both level and then use the fine adjustment on the saddle that has the refractor on. It's fine for visual but i would not put anything longer than a f9 refractor on that side.

That only adjusts the altitude though, it doesnt adjust the azimuth so that both scopes point at the exact same thing.

[Camelopardalis (Dunk)]

Surely this would be less of a problem for the wider field scope? I mean, if there is much flex in the counterweight bar (hopefully not), then getting an object in the FOV of the wider field scope should be relatively easy within a margin of error, once the object is in the FOV of the narrow FOV scope? Maybe not perfect, but a 120mm f/5 has about 3x the FOV of the 8" SCT.

[traveller (Bo)]

This is my latest setup with C8 on EQ6 mounted on a D plate. I then used ADM mini clamps to clamp onto the Vixen bar on the C8 and bolted the ED80 on top (M6 25mm).
The plan (hopefully) is to use both (visual and unguided AP). I also got some guidescope rings from Ken (Merlin) as backup if I want to guide with either scope.
I had to add a 1.25kg weight between the two supplied counterweights as it was getting top heavy.
Bo