Thanks Nettie
Yes, It's promising. I really have to learn the new camera's characteristics first. It's very different and not really meant for this. It's a bit of fun though, so I'll persist. You can't beat full-frame for astro - but MFT is catching up very fast. Terrestrially, it's an absolute ripper.
Gary - no, the OM-D with standard 12-50mm kit lens at 12mm (24mm).